ChiiZ28

I just finished up replacing my wires, cap & rotor, and put a new coil on my 93 LT1. When I put everything back together I'm not getting any spark...any ideas, suggestions and or thoughts would be greatly appriciated. Thank you

Z28Camaro30Ann

iTrader: (15)

Did you properly plug everything back in? i.e. the coil wire, and the harnesses into the opti and coil?

Jcl_96TA

iTrader: (1)

Check Your ICM.

lordrazo

iTrader: (19)

no spark at all as jci says icm or the coil could be bad plug the stock one back in see if its that i have has 1 new bad coil before from screamin daemons

fex77k

iTrader: (2)

What brand coil did you go with, a lot of parts stores are selling off brand MSD spec'd products that suck.

Jcl_96TA

iTrader: (1)

Check for spark at the coil, if there is no spark there it could be the OPTI harness the, The icm, or the PCM. If you have spark there it is the opti..

Here is how the whole thing works in a nutshell.
.1 Optical Part of the Opti Sends a signal to the PCM indicating where the camshaft is positioned.
.2 The PCM Uses that signal along with other signals from the engine to determine when to fire the spark plugs
.3 The PCM then send a signal to the ICM Notifying the ICM when to ground the coil
.4 Once the coil is grounded it fires a spark witch them travels through the Opti cap down into the rotor and out the end of the rotor into the correct Plug wire and to the spark plug.

ChiiZ28

Wow...ok so I'm goin to try and check over everything again and hopefully I just overlooked something...thanx for all the tops and hopefullyit fires. Thamc again guys!!

ChiiZ28

Thanx for the tips & thanx**

TheOdgeMan

The trouble shooting tips sound good. But i had the same problem. I found my problem was a bad 10 amp fuse in the fuse box under the hood location 11 marked ignition it should be a 10 amp.