Ecu rev counter. The resistor is soldered and working fine, showing 1Kohm.
Ecu rev counter The signal provided by Subaru ECU’s and VW’s inline engine management ECU’s (i. . if the loom is already in the car and wrapped then you can unwrap a section near the mk3 coil, find the ecu rev counter signal wire, then cut it and run the fusebox end to the coil -ve terminal under the flap rubjonny, Nov 2, 2015 Ghetto Motorsport 1. the ecu guys said the output from ecu is 5v and the dash needs 12v. The first bit is just me blabbing at how I got to where I did, so feel free to miss that bit out The important bit is lower down and I have Successfully got a Standard Phase 1 & 2 Rev Counter Other posts Daniel Duki Dujmovic w126 2y · Public Help !!!, I have a 350SDL my rev counter is broken, can someone help me with the data of the broken component. Nov 30, 2021 · Many thanks to ThatOneVr4 for producing this tutorial. 8t rev conversion box to allow use of the standard rev counter with 1. You can make your tachometer work with any modern standalone ECU or replace a broken controller from another Toyota and then calibrate it to be accurate. Has the rev counter input been connected to the correct ECU pin (34)? The 9A4 has programmable outputs so has this pin been programmed correctly as a tacho output? You'll need to check using Easimap although I'd be surprised if its not been set correctly as default. same prob when swapping in a 4agze engine and i was wondering if anyone knew of some one who has the converters to make Apr 9, 2025 · Before the Syvecs install, both the rev counter and shift indicator lights worked fine on the standard Hondata Honda ECU. Is there any way of get Sep 1, 2017 · Another 2 options are to use a gutted relay coil that the ECU switches to provide a coil negative signal. This includes the standard rev counters fitted to rear engined petrol VW Dec 3, 2018 · The ECU is outputting a signal, there is continuity between the cable linking the ECU to the rev counter on the back of the cluster. Does the Syvecs ECU output a "different" type of RPM signal compared to Jul 16, 2004 · Nigel The rev counter is actually counting pulses from the ECU. TEXA’s revolutionary RC3 not only keeps engine RPM and temperature under constant control but also serves as an ECU scanning tool. I've fitted half a dozen or so without problems, most to pre '95 Vx cars. This clever little box converts the 1. However all the rev counters I have seen are sold / advertised as If the ecu donor was newer than 2000 ( I don't know the exact year ) the dash will get signals like vehicle speed and rpm from the ecu via canbus. Or get the rev counter converted to accept a low level signal direct from the ECU. Oct 2, 2016 · Also fitted with full-fat ACES shift light system (the adjustable one, with box and buttons located on bulkhead under dash). My output comes from the ECU & is a 4-5v signal (I don't have the equipment to test frequency). Suspect that the stepper motor (common culprit) is OK as the needle moves fractionally in reverse direction on start up (as normal) but then refuses to register positive rpm. not the VW inline models with carburetor, mechanical diesel pumps or separate ignition and fuel injection) will not drive old rev counters which were designed to be connected directly to the coil negative terminal on petrol engines. 8T engine uses a 5V signal from the ECU to feed the tacho (rev coun the ecu wont run the standard rev counter and i want it to work cos it looks better. So I took the Motronic ECU out and had a peek up where it used to be and there's another little black box above it. My tacho requires a 12v signal (it was triggered from the coil originally). Sep 5, 2018 · Ok, does this bell through with a multi meter at the ecu plug pin for the ecu rev counter output pin 42? Have you blown the fuse for the rev counter? (fuse 1 10 amp in the car fuse box iirc). The Rev Counter is suitable for a range of engine types, these instructions will assist in setting the unit for a single cylinder engine. A module which converts the rev counter / tachometer signal from a Subaru or VW (inline 4 TDi, GTi, etc) engine management ECU into what an older design of petrol rev counter (e. My tuner told me that we can run a wire from ign port of the ecu to the speedometer but I am not sure if thats the way to go or not. Tap off one ac winding at a diode, therss your pulse. de: first choice for the check and repair of car electronics I have the Pin 48 from the ECU connected to my Acewell Digidash 7659 and that reads the signal just fine. I presume I will have to take the "signal" wire from the "W" terminal of the alternator to feed the rev counter. Aug 1, 2015 · Hi allstill getting used to the new-fangled Stack instrumentation on my car It has an analogue rev counter as part of the display, which seems to have a very slow reaction speed, and gives no coherent information below 4000 rpm, but I guess I can learn to live with that - or at least I could do. If the ecu donor was newer than 2000 ( I don't know the exact year ) the dash will get signals like vehicle speed and rpm from the ecu via canbus. I have read that you can buy something from emerald to make the rev counter work, will that work with KMS also ? Tthe other option I saw on here recently was people talking about repl Sep 30, 2010 · VDO rev counters normally work fine with MBE ECUs. Symptoms of this issue include misfires, a non-functioning rev counter, rough running, and loss of power. I have the Pin 48 from the ECU connected to my Acewell Digidash 7659 and that reads the signal just fine. Porsche - speedometer / display / instrument cluster - 911 (964 / 993) rev counter, 911 (964 / 993) rev counter: ecu. May 28, 2012 · Rev counter wiring Hi all I'm trying to replace the clock in my 1981 316 dash with a rev counter, and I was just wondering if anyone has any idea how to connect the terminals? They are labeled: 31 1 R and a separate connecter labeled: 30 58 Nov 24, 2006 · I have a 200Tdi engine in my Ninety, and fancy the notion of fitting a rev counter [52mm] somewhere on the dash. A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. e. 8t conversions. 8t ECU rev signal to the correct signal for oem clocks. The manual for this states CDI or ignition coil signal. I have built a circuit to try and amplify the signal Dec 20, 2003 · 3,613 Location: Bracknell you need to cut/remove the ecu wire to the fusebox, then run the fusebox pin to the coil. Nov 30, 2008 · Ive figured how to Run a Rev Counter without any Major Mods or Tacho Convertor using an Emerald Ecu. Dec 31, 2005 · Is it the case that all ECUs dont work withthe pug rev counter ? I have read that both Emerald and KMS dont work. My rev counter is born again! SMITHS REV COUNTER---- CONVERTED TO ELECTRONIC IGNITION USE WILL WORK OF POINTS AND ECU ,AS FITTED TO MGB AND MIDGET----RVI 2430/00---NEGATIVE EARTH---4 CYLINDER---- SUITABLE POINTS and ELECTRONIC IGNITION 100MM FITTING SIZE--- Aug 14, 2024 · Setup and test of a cheap eBay rev counter/ tachometer for use in aftermarket ECUs. g. g Jul 31, 2017 · Hi,so I have a E30 bmw with a Nissan SR20 (76pin ecu) and I am trying to get my standard rev counter to work in the E30, I know the S14 ECU tacho signal wire uses 5V and the BMW needs 12V, so I have my myself a board that allows be to boost the 5V to 12V, but, still no joy. the fact that its on coil pack and not a dizzy isnt helping it either. Assuming theres rpm signal coming into my link is there any way to get rpm signal off the link and to the back off my gauge. Thanks in advance and greetings from Croatia Ahmed Elsherbeny and 2 others 3 reactions · 4 comments Chris Kember Mercedes 190E Owners Club 8y · Public Got a 190d the Rev counter has never worked anyone got any ideas what it could be Walk through what I did to fix the rev counter not working with the VW Audi engine. Jul 21, 2025 · The ECU Engine Simulation can also work well with command line on android terminal apps The ECU Engine Simulation works like a data server, so it waits (listen) for data request (AT or OBD-II commands) from external tester, then processing and responds to the request Dec 14, 2016 · zetec ecu rev counter wire? Oct 2, 2010 · I'm trying to get the rev counter working on my current car project. Most rev counters contain some tiny switches which may be set such that the tacho can be used on 4, 6 or 8 cylinder cars and also on "wasted spark" systems (like the K series) where there are actually twice as many pulses as a "normal" ignition car. Anyway - the rev counter has stopped. Tachometer signal voltage booster - This module boosts the 5 or 12V square wave from an ECU up to the voltage required by tachometers designed to be triggered by the coil negative. MBE 992 ECU. So many pulses equals so many revs. It therefore allows mechanics to perform two types of test using just the one tool. Several people are offereing the guage for sale, but I am wondering if there are any extra wiring looms required or programming on the ECU? I am kinda hoping that I can take the clock out, and plug the rev counte The Mitsubishi Shogun (1999-2006) commonly experiences failure of the engine management ECU. This is a retro fit kit to add a rev counter to Defender TD5 Apr 8, 2025 · After installing the cops my rev counter has stopped working as it was receiving it from the distributor. It is possible that your rev counter is Jul 19, 2010 · My Farmer Spec TD5 defender doesn't have a rev counter, and I would like to fit one. [1] The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are increasingly common. Nov 27, 2020 · There is a rev-counter output on ECU pin V9 which gives two pulses per engine revolution. the OEM VW T25 / T3 / Vanagon rev counter) which was only designed to be connected to the coil negative terminal expects to see. Aug 14, 2022 · Ummm, yes, you can get a rev signal from an alternator, common way of getting existing rev counters to work on diesel conversions. Clear and practical guide to wiring a rev counter with step-by-step instructions and detailed connection diagrams for accurate installation and troubleshooting. A small toggle switch is provided to calibrate the Rev Counter. The resistor is soldered and working fine, showing 1Kohm. All you need to know is number of poles and pulley sizes to do the calculations for component values. Easy to follow and especially helpful about the polarity of the capacitors. The 1. Not used on the bikes but is in the ECU code, presumably from anoyher varient or application. Thanks, Joanthon Your original was not fed from the points as you said, but the coil Aug 30, 2016 · That meant the Rev Counter was reading very low as before, despite finding the tacho output option as turning it to on, but in the post today arrived this from Trigger Wheels, so will fit this this evening if I get a chance. Anyone know what it is? Also, does anyone know how to connect the rev-counter to the Emerald? Cheers! Jul 20, 2013 · Re: Rev counter wiring by DaveEFI » Sun Jul 21, 2013 10:08 am Ghia15 wrote: Hi, Should I be using pin 26 on the ms3x board to run the RPM gauge in the car? Also why does the ignition system I am running matter? Just looking for a bit more clarity on that one. Feb 25, 2020 · So I just recently got a tach gauge off a friend but cant get it to work. rxu9tff egoz1c1 ig3ttl lm bvbl6 ax88 emv hbler 7untf lwkt