DIS ignition sys problem

[92trdtercel]

MY car has a DIS ignition system. There are two coil pack and a signal wire going to each one. The problem i am having is that one of the signal wire is not working. Does it sound like a bad connection, bad ECU or what IT confusing me. Thank for the help

[tyler88]

i cant hardly understand what you just wrote man..

[TTercel]

You mean one wire from your coil pack is not working?

[tyler88]

maybe try and replacing the wire?

[misnblu]

Originally Posted by 92trdtercel

MY car has a DIS ignition system. There are two coil pack and a signal wire going to each one. The problem i am having is that one of the signal wire is not working. Does it sound like a bad connection, bad ECU or what IT confusing me. Thank for the help

If there are three wires going to the DIS setup, you've got one wire for the 1/4 fire and another wire for the 2/3 fire. The third wire is used for the return of the 1/4 and 2/3 trigger.
These trigger wires are coming from the ICM or ignition control module.
Depending on which wire is out, I'd change the ICM with a new unit and that should solve your problem.
If the return (12 volt) wire is out, the PCM could be giving you issues but should be giving you a check engine light if that's the case.

Hope this helps and not too late.