After an engine swap from a r53 of the same year same options I’m getting all zeros across my odometer and no start. Had anyone seen this and can anyone tell me what to do about this? I have both ecu’s from both the original and parts car. Could that be the issue? I can’t see why it would matter being that I’m using the ecu original to the car but that doesn’t mean it’s matching up to the engine… although I don’t know why it wouldn’t. Please help!