When I started it, it did not work. After cold start have engine good idle, after 3 - 5 seconds is iddle bad, and engine shut down. Car wiring question. * KI "W", Induktiv. Outputs do not work and OBD-II Interface cable is not connected. Please feel free to contact us for more. Why not take it listening to the apocalyptic LFA V-10?. The result was a working tachometer. Teleflex has not tested aftermarket systems and cannot guarantee their compatibility. Print IDLE SPEED ADJUSTMENT 350 Engine. RPM Tach does not work, 5300. Because the trip odometer is set at zero I assume it doesn't work because the previous owner tried to reset it while the car was moving. Used Cars Edgewater Park, NJ At Auto Direct Cars LLC, our customers can count on quality used cars, great prices, and a knowledgeable sales staff. He must have done that for a reason. Now the distributor is bouncing at all. Also is there some things I should look out for on this car? Thanks in advance for the help. If no reading or improper reading is obtained at either test position, replace sending unit. It looks great. This allows the coils. The Mopar factory tachs will not work with modern electronic ignition systems. (12/04/2007) Basically, this is a frequency-current converter. I examined the tach fuse and it was shot so I replaced it. Disconnect the boat’s battery from the boat wiring if the boat runs with one, using a crescent wrench to remove power wires from the battery terminals. 1) Speedometer - The speed sensor may be faulty. I've got a 2003 Silverado with 34xxx miles. Sometimes, corroded wire connections and breakage may be the reason for the tachometer not working. I am looking into adjusting the tach output for my 98 VCM due to putting the motor into a 6 cylinder BMW. Odometer counter was not tested and I am assuming doesn’t work like most. Porsche Metric Dial. you can calibrate it with 12 volts with no need to hook to an. Used Cars Edgewater Park, NJ At Auto Direct Cars LLC, our customers can count on quality used cars, great prices, and a knowledgeable sales staff. A special tachometer with an RPM counter suitable for the 8-350 V8 diesel is necessary for this adjustment; a standard tach suitable for gasoline engines will not work. Volvo Penta. Be careful here, if you screw it up you will need to go out and get another booster, the shafts are not replaceable. if not what should i check 4 Answers. Then my stock oil pressure and stock temperature gauge don't work at all. still buy the original coils. Does anyone know how I can check this. when the cars off, its at 0 rpm like it should, and when the engines running, the tach stays at about 3000 rpm and barely moves at all when you rev it. I have everything hooked up according to the instructions and still no workee! Any ideas? Anything I can test to make sure the adapter is working. Here are the symptoms: the tach, gas mileage gauge, and temp gauge don't work the tach doesn't budge; the temp gauge moves up to C when you start the car and doesn't move after that speedometer and odo work fine the cluster will pass the self test. I bought an OEM Harley mini tach from eBay. You will probably need one of these services. If you have after-market electronic ignition i. Hi Guys, I have a 5jj which I bought last year and after a load of hassle, shortly after I bought it, with starting, it turned out after 2 months struggling, to be the neutral switch not working properly. If the touch screen gets unresponsive, responds incorrectly or lags on your Android phone/tablet, how do you fix it? This post is about the quick way to solve touch screen not working on Samsung problem. Where is the sending unit located? Thanks Profile Send Message. My tachometer did not work when I bought it (carbed 2005 T100). I used a graphite powder to lubricate the inside of the cable. Tach needle does not move: The problem can be that the 12Volt or ground connections are missing to the tach. (12/04/2007) Basically, this is a frequency-current converter. The car has been stalling at slow speeds, as in a parking lot or driveway. This SUV rides slow but it’s definitely not slow. Obviously stalling the engine is not good, and is something that should be avoided wherever possible. I ended up putting the meter on the coil and finding the side with. RCX03-547 : GT Power Optical RPM Tachometer (Propeller RPM Tester) [RCX03-547] Review - You can use this RPM Tester to test the RPM of a Propeller on a motor. Check first, I know your other warning lights work but check anyway, that there is power to the tach with the ignition key on, and that the safety lanyard key is installed, that wire should be the purple usually marked as "ign" or "batt" attach your red lead from multimeter and the black lead to the "gnd" terminal, should show power. not to be confused with the resistor chip. From reading PorscheOnut tach not working post, I have the identical problem, Replaced the battery after the car had been sitting for a couple years with very little use. 2014 crew diesel Razor. The way most electronic ignition (add-on) modules work is by connecting two wires. At first, I thought it was the whole led strip, but it's not because it would work certain days and it wouldn't work. 0 Down Available on Late Model Cars. Yesterday took my catera to tire dealer to replace all four tires when I picked up car the speedometer and tachometer no longer work the milage counter still works and the speedometer drops below ze. sometimes it works, most the time it doesn't. If I'm not mistaken, sensors (pulse type?) take inputs from the crank & transmission which feed to the back of your. Both my speedo and tach went to zero for about 5 seconds this morning then went back to normal, freaked me out. The bike was sitting on the garage for three days only when i tried to start it up yesterday the tacho did not turn on and there was no display on the speedo, all other warning lights are working and had checked all fuses and they are good. Tiny-Tach: Frequently Asked Questions. I left the car at 7:00 AM and at 10:45 he called and said all done except the locking system was still not working. I've gotten everything but the tach to work. Be careful here, if you screw it up you will need to go out and get another booster, the shafts are not replaceable. My tach is not working, It moves a tiny bit if i slam the throttle. when I bought the car in spring of 1970,it had 22,000 miles on it and was untouched. the truck will not start when I disconnect it starts up just fine. The E28 chosen was a two owner 528i with 62,000 genuine miles that had been off the road for some time in dry storage and was in stunning condition, with all of the goodies you want with an 80's-era BMW; electric windows, sun roof, central locking, ABS and cruise control all adorn this shark-nose beauty. *This website and the how to repairs, are strictly for suggested ways to fix your equipment. this update improves the performance of your chrysler tachometer and allows you to use m. Then my stock oil pressure and stock temperature gauge don't work at all. I have the #10pin tach signal wire from the. Re: Tachometer / mpg gauge not working i think this may be the same problem that i am experiencing with my tach/econ guages. I am hoping one of them is faulty. By doing so, they can diagnose any problems that are going on. I have a '70 Duster 340 with rallye dash but tach is not working. I have a 1996 Civic D16y8 motor, the tach does not work apart from random moments where it jumps around then stops working again. tach is on crack. 5 out of 5 by 4. If it is the odometer that you are having trouble with (and the speedometer works fine), check out the link below, for more info (E23, E24, E28 & E30 only). hey all i have a 1980 camaro and the tach has never worked. Speedometer, temp, gas and tachometer all worked. Autometer Tach Wiring Question March 26th, 2016, 02:30 PM I have an Autometer 10,000 rpm tach and in the wiring instructions it says that for one of the terminals(3rd one in from the left in the diagram below) that it goes to a 12v Key On source or to the Dash Lighting Circuit. If you unscrew that cap and find nothing but a plug, then where did that model take its tach signal from? I'll have to look at mine. The rest of my gauges work fine (except for the mph gauge being off but thats cause of the rims). Digging into the paddle wheel assembly may not be for everyone but on the 2nd factory part failure I decided without hesitation to repair mine instead of buying another replacement. It is normal to show random value even if no motor function. Have used Tachman in the past and not disappointed but would like to go with someone a little faster. I have had my tach out several times. LS SWAP TACHOMETER PROBLEMS. Rpm gauge not working at all | Find answers to your 2002 Ford Explorer Sport Trac question from certified mechanics and auto experts. I your tach does not work while cranking the Response To: O. I found the tach cable laying disconnected by the distributor on my 1982 corvette, but I don't see where to connect it to the distributor. at the same speed & doing the mod below tach was now off by 80-100 revolutions. If you don't find a problem there, your problem lies in the dash or the tach itself. Not that you really need it, but the hour meter was frozen and I keep track of that for maintenance purposes. Everything else is working fine. Are all electrical connections correct and tight? 2. Any idea what might have caused the tach to stop working. 1 ORGANIZATIONAL TROUBLESHOOTING - CONTINUED MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 6. Tachometer will operate with other OEM electronic engine ignition systems. BMW e28 e30 e24 odometer gear repair If you’re an owner of late 80’s to early 90’s BMW E30, E28, and E24 models then sooner or later you’re going to experience an odometer that stops working. 1986-1988 BMW E28 535is 535i VDO Instrument Cluster Tachometer. I have the #10pin tach signal wire from the. I am also having issues with power bob tach not working on a S 185 I have been checking and have found 2 issues first no power at center terminal on switch ( all fuses good ) I am assuming that there is a seperate fuse for bob tach. Engine needs freshened up. speedo Still not working. We haven't tested it with any other gauges so I'd be very hesitant to recommend it for use with your OEM tach. Another way to check the operation of the speed and reference sensors it to crank the vehicle and watch the response of the tachometer. I found out about the recall after the fact but did not have the bad regulators. I'll take a look at what you sent thank you but what I need is a wiring diagram to check for loose connections to the tachometer and the tachometer alone. *This website and the how to repairs, are strictly for suggested ways to fix your equipment. May not work on all engines. The second ignition module wire is typically black and it connects directly to coil (-). Everything else on the instrument panel works. could it be a relay or fuse. They were working fine before. This port is tiny. Alright, so I've actually been having this problem for a few weeks now. This SUV rides slow but it’s definitely not slow. (This could be specific to their part I suppose) I, too, am having the tach issues - turn the key to on position and it blips to 1k, start the engine and nada! I need to take a close look at the needle length - I may have a pre-'79 tach and not. My RPM guage is not working correctly. The owners said that there was a port on the lower unit that was clogged up and just needed cleaning out. Connect the supplied OBD-II cable between the STA-1000 unit and the display is scanning the vehicle diagnostic plug. The symptoms of tachometer problems are: a sticking needle, the tach will not register above a certain rpm, sometimes the tach works correctly and sometimes it doesn't, the needle does not return to zero when the ignition is turned on, the needle jumps radically or fluctuates, or the tach just does not work at all. If it works erratically, or is way off, then the filter would most likely fix it. I took the gauge cluster out, disconnected the ribbon connecter and some other strange plug behind the tach that was really hard to get back in. post and jumper cable. (12/04/2007) Basically, this is a frequency-current converter. If you have an adjustable steering wheel, adjust it all the way. Used Cars Columbiana At D'Lux Motors, INC ,our customers can count on quality used cars, great prices, and a knowledgeable sales staff. Oil gauge, fuel gauge, speedometer, all the warning lights. If the alternator doesn't work thent he tack wont workand probably the hour meter I'm guessing. if not what should i check 4 Answers. Find and remove the cable. My mpg gauge wasnt working at all, it was stuck all the way to the 40+ mpg side for about 2 months, then when i changed the timing belt and re-connected the battery after disconnecting it to do the work, it began working perfectly and has for about the last 4 months, dunno if it will work for you, but something that easy is always worth a shot. This is an RVI 2401/00B positive earth for 1964 to 1967 as used in all markets. If you want to test the switching capability, use a multi meter on resistance,. instrument gauges out except tach, horn doe not work. Make sure it is properly connected to one of the yellow wires from the stator or from the input terminals of the rect/reg. The tach problem would then have to be in the gauge itself (just an analog voltmeter, really) or the wiring. Instock, Usually ships same day. Removed the connection and revved just fine to high rpm. You may have to register before you can post: click the register link above to proceed. This tach cup will not work with the Stewart Warner tachs #s 665-D997J or 665-D997R as the depth of the gauge is greater than the depth of the cup. 2014-Present Gauges Run on the Can-Bus data system and the Speedo/Tach can not be sold or reused on any other bike than they came on. For this reason, your OEM tach that was circuited to read the latter, does not recognize and cannot read the signal it’s receiving from the newer style. Tachometer will operate with other OEM electronic engine ignition systems. They do not go out AFTER the car is started, typically I can tell when I start the car if they will work or not. I have a 2007 john deere 5525, it all of the sudden shows 00 on the speedometer, the tach doesn't move, as does the fuel gauge and temp. This port is tiny. However the tach does work in mine now. The tachometer does not work properly. Are all electrical connections correct and tight? 2. The hour meter in the lower middle works, and the tach needle moves a little through the rpm range and then sticks in the 1500 rpm position when turned off. This isn't a problem thanks to Partzilla. I would start by checking the vehicle for fault codes. Also gear indicator is off, reads nothing until reverse and. If your car doesn't have one, it's a good way to keep an eye on your engine speed. “J”, “F”, “C” The vehicle bus is not compatible. If your tach does not function properly after installation check the following: 1. Please note - Not all SI boards can be successfully repaired, especially those with screw or battery acid damage. We have a strong foundation of fully programmable CAN modules. I have a 93 LS that the tach and speedometer were both working intermittently. Well the tach not working is the issue and I don't know what to do next. All of the information here relates to the E28. Most cars with automatic transmissions are not equipped with a tachometer, since a tachometer is mostly used to indicate visually when it's time to shift gears. Just wobbling it about an work wonders too. Used Cars Edgewater Park, NJ At Auto Direct Cars LLC, our customers can count on quality used cars, great prices, and a knowledgeable sales staff. I am hoping one of them is faulty. Tachometer intermittently quits working and. Only at www. A small percentage are permanently failed and require replacement. Does the tach work? If it does then its probably the speed sensor(VSS) it's on top of your transmission, you can probably get away with cleaning it and it should work, if not it will have to be replaced. (If you install a used cluster in MOST vehicles (that is not your original cluster coded to that car) your CAR WILL NOT START! - We clone the original cluster to our used – working cluster. Remove the nuts off of the studs, then remove the U bracket and the Tach will come out of the dash if the wires are long enough if not disconnect the wires. My speedo and my tach is not working, neither is my odometer. Chrome trim has been shadow-lined. A Here is a write-up on the initial steps in tracking down a speedometer and/or tachometer problem. The classic SUVs are legendary. Check the tachometer wiring section in the car manual. 3 ECU’s is that they are able to store engine fault codes and you do not need a scanner to access them, all you need to do is preform a stomp test. Teleflex has not tested aftermarket systems and cannot guarantee their compatibility. FORD repairs. BMW e28 e30 e24 odometer gear repair If you’re an owner of late 80’s to early 90’s BMW E30, E28, and E24 models then sooner or later you’re going to experience an odometer that stops working. And on my transmission only 2 gear works (limp mode). 5487 S Orange Blossom Trail Orlando, FL 32839 Call 407-858-9550. The tachometer does not work properly. Not available with (ZW9) pickup box delete. The E28 engine wiring also has a small interface connector next to the ECU. From the XS11 list on 7/16/00 Rick Z. 12 volts and will not work. 220 mah removable lithium button battery included. If so, how does that work? How does the data recorded from whatever it is that records the data get displayed on the dash? Electrical or mechanical signal? How is the tachometer needle calibrated to move the right amount and point to the correct number (rather than just spin round in a circle or not move at all)?. I do know the gauge is not reading correctly, Sometimes it reads 8000 RPM and I know for sure it boat is not running that high. The tach and speedo work most of the time, but sometimes work sporadically. When the tachometer is not working, while the hour meter shows hours the hours do not increase. Click here for detailed information and to view our entire inventory of Used Trucks. You may have to register before you can post: click the register link above to proceed. I licked my finger and drew a line on the dash and thats where the throttle lever goes. RE: Tach not working IP: Logged Message: My tach and spedometer stopped working this winter. Generally, it is supposed to show exactly same values for callout value and target value with no filters applied to your tachometer. The engine speed is calculated and processed by the PCM and sends that information to the instrument cluster. The hour meter in the lower middle works, and the tach needle moves a little through the rpm range and then sticks in the 1500 rpm position when turned off. The symptom of that failure is that the tach will not work in cars with lower ignition current. The tach function does not work accurately on a v-twin engine due to the magneto ignition. Also it does not work. When your RPM is less than Average Cruise RPM (when taxiing, decent, etc), Tach Time will count slower than HOBBS Time. I love these fix your gauges threads! My 2001 speedometer wasn't working due to the paddle wheel pickup mounted on the ride plate was defective. \'99 Wrangler Sport 4. Well the tach not working is the issue and I don't know what to do next. The two tachometers should read within 10 percent of each other -- if the shop tachometer reads 1,000 rpm, your boat's tachometer should read between 900 rpm and 1,100 rpm. That's not bad for a system that was designed some time in the late 1970's! This article discusses many aspects of the brakes in your BMW. RPM Tach does not work, 5300. not 100% accurate but pretty close. The tach will not work until the issue is resolved, then it will recover automatically. Comes with 6 ft bushog and 3 pt hay-spear that mounts to the back. I just went through all of this on my boat. The problem is the overlay is rubbing on the needle, not allowing it to move around. The tachometer is analog. If you have a 318 and use a 325 cluster, or vice versa the reading on the cluster will not be accurate. I'm not sure how to go about unclogging it or how deep it is. my 1988 bmw 528e has a problem as far as the tachometer,fuel gauge,and engine temperature gauge not working. Connect the supplied OBD-II cable between the STA-1000 unit and the display is scanning the vehicle diagnostic plug. On that model S-60 the tach gets its signal from the ECM. At first it would sometimes work after I went down hill and hit the brakes. The tach has been intermittent since having the truck lately it hasn't been working much at all. They make odometers tamper-resistant, so unplugging it will not change your mileage. Then my tach started jumping around and working intermittently. From reading PorscheOnut tach not working post, I have the identical problem, Replaced the battery after the car had been sitting for a couple years with very little use. Although I can drive and shift by just the sound of the engine it would be annoying to not have one. 2003 Honda Odyssey Tachometer not working and engine revs up while idling. Manual transmission. Now it is not working either so maybe something is wrong but that. The 2004 Chevrolet Silverado has 10 problems reported for speedometer and tachometer stopped working. Strip the end of the trigger wire for the tachometer, and place a female-to-female connector to it. Sometimes I turn on the truck an its sitiing at 4000 rpm and I accelerate normally and the gauge pegs out at 6000 rpm. the tachometer IS NOT compatible with the inductive pickup. GHP™ 10 Tachometer Reference This document contains common tachometer wiring connections on a variety of engines. Can anyone please help It has the bigger transmission as well. Our fast shipping, low prices and years of research make us your best choice when you need parts. If neither tach nor dial light work, check ground and 12V power connections. I'm skeptical as I'm in a few groups related to these cars and I've not seen that very much, but it could be. I have everything hooked up according to the instructions and still no workee! Any ideas? Anything I can test to make sure the adapter is working. I purchased a used 2011 Ninja 250r not too long ago for my first bike. : Honda CRV won't start Art Silva Messages Archive 2006 is maintained by Ellis Walentine. i searched around here and saw i'd need a 91-93 cluster or a jdm one so i bought one. If you don't find it there, get the appropriate Hayne's manual for your car. If you take the cup off, you'll likely find a date stamped in red on the back of the tach head, usually, but not always. Where is the sending unit located? Thanks Profile Send Message. The speedometer was not working when we test drove the boat. The second ignition module wire is typically black and it connects directly to coil (-). You may have to register before you can post: click the register link above to proceed. My "rear antilock" light stays on. I stumbled on your advice of giving the tachometer a few love taps and now mine works! What made my dilemma unique was that it would no go beyond 30,000 rpms. I have just noticed that my odometer and the trip meter have stopped working however my speedometer is still functioning. 3 liter Merc. At the next start-up, the buzzer of the tachometer emits a beep-beep pause bip-bip pause continuously, and xxxxxxxx appears on the display. I have a new-to-me 2003 Crownline 180BR with the 4. The tach shows about 2k idle which is right for 500-600 RPM over 1. when I bought the car in spring of 1970,it had 22,000 miles on it and was untouched. I asked who was going to pay the dealer and was told if it was related to the accident, State Farm would pay. FORD repairs. 25uF capacitors, but available 0. Any ideas on how to check, to me it seems like its not reading correctly from the motor. I'm assuming it is accurate because at full throttle it does not go past the Max RPM guide numbers on the Tachometer. ZF 5 speed gearbox out of e39 528i with a new oil. Choose a location that does not impair visibility,or interfere with driving. It should be installed so anytime power is sent to one of your coils, it has to pass through this unit. I purchased a rebuilt cluster, installed it, and the tachometer still did not work. If your tach does not function properly after installation check the following: 1. Thanks!:usa:. Question 1: I haven't had any problems since but I do have a strange noise that is. For corrections or suggestions, contact me using the link on the left hand side. A tachometer is designed to gauge the engine RPM, or revolutions per minute. 's BMW E28 Gauge Panel No -- the right-most gauge would hit the radio surround and the gauge mounting brackets would not work. the tach and speedo do not work. hello mhh auto, im currentl working on a dt466 11/03 international 4300. 3 liter Merc. Tach at about 5500 speedo at 85 or was it 90. 2004 Rev 500SS Tach, Speedo, & Odometer Do Not Work - posted in REV Chassis - Performance and Trail Models: Hi I have a 2004 Rev Renegade 136 with a 2005 500SS engine in it. wrote: "I have a 1980 XS1100 special. They make odometers tamper-resistant, so unplugging it will not change your mileage. MG MGB Technical - Revcounter and petrol gauge not working When I bought the gt 6 months ago the rev counter did ot work and now the petrol gauge is not working. Get these while available. mercury outboard tachometer and speedometer not working? my boat has a 1995 mercury 90HP outboard. Tachometer Not Working Solved - Interesting I wanted to come back here and post the answer to my own question of a tachometer that just quit working. If problems persist try tach on another vehicle with the same. Instructions say to purchase a MSD Tach Adapter 8920 (for Autogage). not 100% accurate but pretty close. This article on how to wire an electronic tachometer doesn’t have anything to do with Project X other than that ’57 is the granddaddy to Super Chevy’s Chevelle. I have done some research on this issue and it seems to be somewhat of a common occurrence because of the internal plastic gears becoming brittle and loosing gear teeth to turn the meter. It bothers me somewhat, if its just a sensor then ill replace it but if its the cluster it doesnt bother me that bad!. I’m sure if you take off the overlay the tach will work fine again. If you've got a tach you can figure out the drive ratios and get a rough conversion to vehicle speed if you. Yourmechanic’s technicians bring the dealership to you by performing this job at your home or office 7 days a week between 7AM-9PM. Once in awhile it will bounce a little, but that's it. I posted a similar issue of my tachometer having issues back on March 19th, 2013 and had 116 views with no replies. Typically this treats bounciness or erratic movements; it is not used for calibration issues which it seems like yours may be exhibiting. If you want to test the switching capability, use a multi meter on resistance,. Find MSD Magnetic Pickup Tach Adapters 8920. Is there anything I can do to get the tach working that does not involve removing the tach, go back to points and putting me in the poor house?. I then attached the aftermarket tachometer to this connector and the result was a working aftermarket tachometer. The speedometer has always worked until this year and the tachometer has never worked. Find and remove the cable. This is an RVI 2401/00B positive earth for 1964 to 1967 as used in all markets. not sure what the problem is. i looked under for the speedo sensor and noticed all the wires are cut on it!. sometimes it will go down a little to about 5000 rpm and then go back to max. so if someone can help me with whats wrong with my tach and oil pressure gauge and temp gauge that would be great thanks. I am hoping one of them is faulty. Click here for detailed information and to view our entire inventory of Used Trucks. Use a screwdriver to unscrew the tachometer from the dashboard it is attached to. what could be the problem?. FOR SALE - Los Angeles, CA - Is the speedometer, gas guage or tachometer cluster on your truck or SUV not working? ALL 2003 2004 2005 2006 Suburban, Silverado, Sierra. The body work looks really nice as its just had a machine polish so the paint looks and feels like glass. An M5 instrument cluster has been installed, and includes a 170-mph speedometer, 8k-rpm tachometer, fuel gauge, temperature gauge, and a service indicator. Really, I figure the mpg meter doesn't work because the tach doesn't work. Tach plug from harness that plugs into tach is not cut, wires from back of tach OK. Some people have claimed to have better idle with the 1. The tachometer adaptor is really just a box with a coil in it which replicates the voltage pulses of a stock coil to trigger the tachometer. This port is tiny. Electronic Ignition Tach: How It Works In a Distributorless Ignition System (DIS), each coil is responsible for firing one or a pair of plugs, so they fire less frequently. i tested the sensor n connector. Print IDLE SPEED ADJUSTMENT 350 Engine. instrument cluster doesnt work,speedometer,gas gauge,tach. Eventually, the tach just stopped working. what is my issue? its driving me nuts. If you need clock repair and can't do it I'm your man - - - Updated - - - also like to add if you decide to go with the RTE tach board I highly recommend you get the one with the calibrater built in. My RPM tach is doing the same and is not working. my 1979 corvette tach not working. The 2004 Chevrolet Silverado has 10 problems reported for speedometer and tachometer stopped working. Rev up industrial predictive maintenance with an Extech handheld digital tachometer. It then outputs a pulse every time power passes through, generating a standard tach signal. Very solid straight truck loaded with options. If, after installing an MSD Ignition Control, your ta'chometer, fuel pump relay or electronic fuel injection (in foreign vehicles) doesn't operate correctly, your ap'plication may require a Tach Adapter. I have ohm tested the wires from ecm to tach and they are good there is 12 volts and ground at the tach. JD 650 tachometer troubles My John Deere 650 (now gone) needed to have the tach head and the cable replaced. Is there anything else I can check or am I gonna have to take it to the dealer and spend a couple hundred dollars. They make odometers tamper-resistant, so unplugging it will not change your mileage. After installing new control arms, bushings, sway bar bushings and tie-rod ends the tach started working again, however the. It lights up but the needle does not move. I have a final coming up and there is a wicked good band at the pub down the street and I need beer money and also have no time to work or build this circuit. Quite often I either hear about or see another broken odometer on an old Mercedes. 1 ORGANIZATIONAL TROUBLESHOOTING - CONTINUED MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 6. still buy the original coils. The tachometer also moves if i give it gas so its not like the gauge is broken.
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