cribbj wrote:
Again, I plan to keep the OEM Motronics ECU's in the car in order to pass annual inspections (which are simply OBDII scans), however the engine will actually be running on an aftermarket ECU(s).
I really don't know the answer to #1 but assume that since most cars don't have an air pump anymore its not actually required.
But the real answer is we we need to figure out how to generate the OBDII signal, you know...so you can check engine status with off the shelf scan tools of connect to the various other dash tools and such.
The other option is to feed the OEM ECU from a true engine simulator...but that seems harder than setting up OBDII. Not sure.