Ok here goes i have 1996 chevy camaro z28 with the lt1. I bought the car about a month ago not running, i had to replace a bad optispark and while I was working on it i replaced the plugs,wires,fuel filter, crank position sensor, and pcv valve. The car ran like champ up intill sunday. I was pulling out and it just died for a split second seemed like ignition cut out. It kicked back in and i drove about 1 mile or so and the car shut off completly. I pulled over and started the car back up it idled but when i reved it up it cut out and shut down. I was only a few miles from home so i drove it home and kept it at a very low rpm. When i got home i reved it again and it cut out but didn't shut down. I did get a code and i called autozone and they told me it was a bad ignition coil. I forgot to write the code down sorry. So anyway i put the new coil on and then it didn't start. That was sunday. I got up on monday and went out to the car and it fired up i drove it 500ft to my garage and let it idle it idled for 2min or so and shut down. So i went and got a new ignition control modual and tried that no luck so i put the old one back on and returned the new one. I am starting to think that the optispark is not sending the info to the pcm is there any way to check to see what the optispark is sending the pcm? ohm or any voltage you can check? So what i have is a brand new coil, 1month old optispark,plugs,wires but car will not run? any input or ideas would be greatly appricated!

Thanks Travis motoman626@gmail.com

 

Start by rechecking all your work, looking fro some connections that may be loose. The crank sensor on LT1s does nothing but check for misfires, so that shouldn't be your problem, but check all connections between Opti, coil, ignition module, and PCM. And try to get the trouble code, it make finding the problem a lot easier. Also uplug the wires from MAF sensor, the car can run witout it, and keeps it from going into closed loop. If it works OK with thw MAF unplugged, it is an indication of a sensor problem, and not necessarily the MAF. Also check fuel pressure when engine goes dead, and verify you are getting a GOOD spark.