I recently bought a 2009 Pontiac vibe/matrix . Has the 1.8 . Engine has lots of new parts but unfortunately the ecu got wet and fried. I bought a rebuilt ecu(same part number) car acts as if there is an immobilizer installed. Changed to a used ecu same symptoms. I had a locksmith take a look and he said it doesn’t have an immobilizer but the ecu must have came from an immobilizer car. Now the ecu is looking for corresponding code from the immobilizer transmitter. Again car has no factory immobilizer. Is there some way of reprogram the ecu to not look for an immobilizer ? This is an American car immobilizer was an option.