BLWNLT1_T/A

iTrader: (12)

My cousin has a 94 Lt1 he recently put back to stock. Well now the car will crank right up when its cool and run strong. Once warmed up to operating temp the car will die and not turn back on, no fire is going trough. Bought a new coil , and coil module. Any other suggestion? we still have no luck.

ClovisAutoMotion

iTrader: (3)

By no fire you mean no Spark? Are you absolutely sure there's no spark from the Opti and from the Coil?

Jameslt1TA

My camaro did the exact same thing. The optical sensor in the opti was bad.

BLWNLT1_T/A

iTrader: (12)

lol i meant spark.. I am sure it is no spark coming out of the coil, nor out of the opti (spark plug wires)

jaycenk

iTrader: (1)

Coils will do that and so will Ignition moduals. If you test those after it gets hot you should find out if there good or not. also the opti harness needs to be checked.

RamAir95TA

iTrader: (2)

If the optical sensor in the optispark is bad, it won't send the signals to the PCM which in turn will not send the signal to the ICM to tell the coil to fire. shbox.com has a complete set of diagnostics you can follow.