LTCC ignition install answers needed...
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 1,108
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From: Plano Texas
LTCC ignition install answers needed...
I'm in the process of installing an LTCC ignition in my 94 base model Corvette. I've got the coils installed, the LTCC ignition box installed and am in the process of wiring in the system. I've got the pink, yellow and white wires ready to hook-up, but I'm a little confused.
The instructions say to hook-up the pink LTCC box wire to the two pink wires at the coil. Easy enough. The yellow wire will not be needed as I'm not using the rev limiter. Again, easy enough. BUT, the white wire is described as being hooked-up to the white wire at the coil. Huh? Using the FSM wiring diagram, the white wire is the feed for the tach and the ASR. Shouldn't I be hooking up the LTCC box white wire to the white wire at the ignition control module (ICM) connector?
Also, when I hook up the LTCC, I understand that I will lose the tach and the ASR functions unless I hook up a wire from the A13 or A14 terminal at the PCM (ECM) connector to the white wire at the coil. Is that correct? What confuses me is that the FSM shows the A13 and A14 slots at the PCM to be empty. Is there still power there, or do I need to make the connection from a different source.
Any help would be appreciated.
Thanks in advance and have a Happy Mothers Day.
Mark B.
The instructions say to hook-up the pink LTCC box wire to the two pink wires at the coil. Easy enough. The yellow wire will not be needed as I'm not using the rev limiter. Again, easy enough. BUT, the white wire is described as being hooked-up to the white wire at the coil. Huh? Using the FSM wiring diagram, the white wire is the feed for the tach and the ASR. Shouldn't I be hooking up the LTCC box white wire to the white wire at the ignition control module (ICM) connector?
Also, when I hook up the LTCC, I understand that I will lose the tach and the ASR functions unless I hook up a wire from the A13 or A14 terminal at the PCM (ECM) connector to the white wire at the coil. Is that correct? What confuses me is that the FSM shows the A13 and A14 slots at the PCM to be empty. Is there still power there, or do I need to make the connection from a different source.
Any help would be appreciated.
Thanks in advance and have a Happy Mothers Day.
Mark B.
