im new to this forum. looks like you guys know your stuff so i thought id join.

i have a 94 z28 and the check engine light comes on after about 10mins of it running. i pluged in the code key to watch the blinks of the check engine light but it never blinks. i never even get the code 12.

also Ive recently had problems with my vats system. can the performance shops usually program vats not to work? I think i have a bad pickup inside the lock cylinder.

 

'93 was the last year you could use that method. You'll need a code reader, scan tool, or software to pull any codes.

 

on my 1995 V6 3800 Camaro I was able to flash my codes by by grounding out the ALDL connector. '96 on you cannot flash codes

 

For the LT1, as noted in moparman's post above, 1993 was the last year you could flash the codes by shorting the ALDL pins. Will not work 94 and up, on the LT1.

 

ahh well that makes sence. i thought the key would work for any gm 95 and down. thanks