no spark ,got a new coil and thats not my problem, its basically down to crank sensor, ignition module, or opti. any sugestions thanks,


ps. how do i test these there all expensive and non returnable

 

ok, its NOT the crank sensor, that wont effect spark(for misfire detection only on the 96-97 LT1s), I think shoebox has something on his site to check the opti and module

 

I took my ICM to autozone and they tested it there. Shoebox has some really good troubleshooting guides on his site, check them out.

 

did you see if the wire from the coil to the opti was throwing an arc when the engine was cranked?

 

yea when i pull the coil wire off the opti and try to arc it, i get nothing

 

So far i have replaced the coil, and the ignition control module and still not even the slightest spark. please any help!! some back ground info was the car was running fine no problems and just died didnt even sputter just died. I was probaly at about three quarters throttle when this happend. if this helps the check engine lite turned on the day before for the first time since ive owned the car but was not on when it died. I guess all i have left is the opti to replace.

 

A code scan may give you some insight to what the problem is. The Opti will set codes for problems with the optical module.

 

it was the opti, it made it 130k miles RIP

 

May sound stupid but did you check the harness where the opti plugs in. both at the top of the opti and alongside the manifold.check that i had the same type thing and it turned out that the plug thing wasnt all the way seated in the top of the opti.

 

Maybe you didn't notice that his last post said he fixed it (about 2 months ago ).
The harness is a good thing to check, though.

 

Haha sorry shoe, i was just skimming through..haha sorry bud..