Question about 1996 Pontiac Grand Am
I replaced the key assembly on my 96 with one from a 95. The 96 had a wire plug on it and the 95 didn't, so we took the tumbler assembly out and traded the housing. Now the car will only run for 2 second and it dies. Is it because the plug on the housing?
The plug is for the passlock sensor. It senses the key and sends a signal to the cluster which interprets that signal and sends a password to the PCM telling it to let the engine run.
If that siganl gets interupted or not sent at all the engine will only run for 2 seconds and then shut down. You will have to replace the ignition cylinder and the sleeve around it which contains the passlock sensor. If you order a passlock sensor it will come with both but you may have to get the cylinder coded to your old key.
Once installed you will have to perform a 10 minute re-learn to allow the engine to run. To perform the re-learn put the key in the ignition and try to start it, once it stalls don't take the key out, leave it in for 10 minutes or until the theft light stops flashing. Then turn the key off for no less than 30 seconds then try and start the vehicle.
Posted on Aug 25, 2008
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