Audi A4 2.7T VEMS Project
The project is a 1996 Audi A4 2.8 with a 2.7T swap.
Using the stock trigger wheel (60-2) and stock sensors for IAT, CLT, with a VW VR6 throttle body, stock turbos. Running with a V3.3 ECU currently running 1.0.36 firmware (I know it's a bit old, but it's pretty stable and I know it should run the 60-2 as I used it on my friends VR6)
We can help upgrading to 1.0.73 or 1.1.26 (or later) if you publish mcd and mct dumpfiles.
- The car runs! It turns out the OEM mark on the crank pulley wasn't actually TDC as well as oil outputs 10 and 20 needed to be reversed! It idles smooth like a baby right now. Thanks to all for the help, I knew it was just something stupid like that.
For the life of me I can't seem to get the car to run... using the proper settings for a 60-2 in the trigger setup.
- good settings:
- 58 teeth,
- next trigger tooth 20,
- trigger tooth 3
I confirmed the trigger polarity by removing it and testing it. So the VR sensor is connected properly. Using a harness from the 2002 Audi S4, the white wire is the trigger and the blue wire is negative (goes together with the black shield).
Also trigger settings: trigger tooth 3, next trigger 20 and 60 deg after TDC make the car run just fine with the new firmware ( 1.0.71) the RPM scale is correct as well. Next step is to confirm the timing with an adjustable timing gun.
RPM readings are about right I'd say during cranking anywhere from 190-240 RPMs.
MSQ's (obviously for the older MT release for firmware 1.0.36)
http://www.vems.hu/files/MembersPage/Sascha/S4/S4_%20base.msq - Base map with proper trigger wheel settings. But incorrect coil output settings! coil outputs 10 and 20 need to be reversed! CAUTION!
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