I'll be converting my Volvo V70 XR AWD over to VEMS to take advantage of the Precision PTE 6262BB turbo I am installing. I plan to build the VEMS 3.6 into a Motronic ECU case and use as much of the stock wiring as possible.
I already have a separate COP setup through TurboTunerUSB, so I will need to include new wiring from unused pins in the ECU for the logic level outputs.
I plan to leave a stock (modified for no CEL reporting) ECU in a bridge connector to retain the instrumentation & basic OBDII output for state inspection purposes
I want to retain items from the existing ME4.4 such as the AC/2 speed fan functionality, Barometric pressure compensation, dual knock sensors and Accelerometer (if possible).
The main item I have to add is the MAP/MAT, I'm going to use the Bosch/VW item. I can repurpose existing wiring from the EVAP valve for that.
The WB02 will be installed in place of the existing rear O2, I just have to add one wire to the stock harness for that.
Main Engine harness mostly ready.
WBO2 wired where Rear O2 used to go, added wire for Nerst
MAP installed in intake
IAT in intake pipe
VEMS board arrived - so assembly & install in Motronic box is next
started laying out board connections
heat sinks
Motronic wiring
