[ischmitz]

Originally Posted by silverc4s

Would be good to either: try your ecu in a running car, or : try a known good ecu in your car. Of course you need a friend with a ecu or a car to loan to do this, where are you?

hm - this will trigger a lengthy discussion as to whether swapping one into the other is safe. Bottom line, depending on the fault both can potentially cause more damage. In this case I would be a little concerned that the car in question doesn't have the original wiring. So 'd probably try the DME in question in a good car rather than the other way around.

But before that there are more tests that the OP can do to narrow it down.

ingo