2001 Pontiac Montana Full Engine Replacement

2001 PONTIAC MONTANA
3.4L • AUTOMATIC
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LIZNLARRYGRAHAM
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So My husband and father totally replaced the engine in my van with a engine from a car, i cant remember exactly which, but after they finished it would not fire, I will turn over but no fire, they tried the computer that the other engine came with but the security on the van engaged and we are curious if the problem still lies with the computer but it needs a code or something.
Jul 21, 2015 at 2:23 AM
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HMAC300
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tyr resetting security system with original ecm in car.becaue the battery was disconnected the security system engaged and won't let it start.
Jul 21, 2015 at 6:10 AM