I don't have either kit yet, but here's a question for the gurus.

If I were to install an Accel Gen 7+ wideband DFI management system on my 1994 Trans Am, would I still be able to run an LTCC coil-per-pack ignition module?

I'm wondering if there would be any wiring conflicts, as well as if the two units would co-exist without causing problems.

Here's to hoping that there's an easy answer to this!

 

It looks like you may be able to do it. The DFI can read the optispark signal, which it looks like you need to keep with the LTCC setup. Then the LTCC should be able to use the EST output that the DFI ECM will generate to light off the appropriate coil(s). I am not real familiar with the LTCC setup, but in concept, it looks like it should work. Maybe someone familiar with the LTCC can provide some details on exactly what it is doing, and what kind of trigger input(s) it is looking for.

 

Not sure if the coil pacs would work, but I'd like to know also. I'd really like to get rid of my OptiSpark before I have any problems with it.

You can switch to the Accel Dual Sync distributor. (around $300 for the distributor and $70 for the correct harness)

This will eliminate your Opti, and will allow you to run in sequential fueling mode.

This of course would require that you drill a hole in the back of your intake manifold for the distributor to pass through. This will involve some fabrication but I think Im going to take a stab at it.

 

The LTCC will work with DFI as long as you have your opti. The opti will still produce the same signals to send to the LTCC. The only signals that the LTCC needs is the high and low res opti signals and EST signal from the DFI unit.