Thread: 95 cheverolet lt1

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hi i have a 95 cheverolet lt1 out of a camaro that i have recently installed in a 87 s10. the problem is that when i start it the engine runs fine for about 3 to 5 seconds and just dies like someone turned the key off. i have been fighting with this problem for a couple of weeks now asking around about it and none of the suggestions that i have revieved have worked . if anyone could please help me it would be greatly appreciated. if you have an answer to my problem please let me know. . thanks

couldn't it also being the HEI ignition kicking to computer mode and dropping off when it sees theres no computer... sposed to have a safety fault that if it cant find the computer it'll continue running... but who knows

yeah doesn't look like he is.... oh well... his loss

Its gonna be in the key, that's your anti-thief, and you have to by pass it to get the motor to run. You'll need to reprogram your computer.

Originally posted by DennyW
Alright Mike.

i wonder how I knew that?????

awesome.... didn't even think about the whole chipped key thing.... good job

Originally posted by thesals
awesome.... didn't even think about the whole chipped key thing.... good job

I'll never forget it. When I put my motor in my truck I spent about 2 weeks trying to get it to start and couldn't, because i wouldn't ask for any help. I was talking to S&P about a chip and he was telling me what I needed. I wouldn't have thought that it would have been in the chip. in my life time if I had of ask a few more ? I would have worked about 50% less.

i totally hear ya on that one... luckily i dont really deal with computer controlled motors... just the rare occasion when someone with a stupid civic needs my help

Have the computer reprogrammed its about $100 and well worth it on the LT1 ,I had mine programmed to speed density so I didnt need the MAF and it looks cleaner with just an air cleaner on the throttle body ,The MAF was just an OBDII item ,not really needed I had Vats removed ,that is the security and if your running an auto trans have the shifts stiffened up

I had considered that also about measuring the air coming in or speed density ,I stroked the LT1 and added a little cam so I was concerned .But with the ECM tune it was set up perfect and didnt have the MAF plumbing to deal with .I dont think the GM system in a LT1 works like the old ford ,it is sequential FI just different way of measuring fuel needed. On these cars if you unplug the MAF the car will run fine you wont notice anything but the ck engine light in my research I found that the MAF was just added for OBD II compliance that most GM cars use speed density first and MAF to make minor adjustments