Falcoms

Well, after having my car at A-spec tuning for over a month and a half for tuning, the guy finally tells me that there is an ignition issue, and they can't look at it for another week and a half. So, here I am with a car that has barely any spark on the leading coil, front or rear. I've gone through the wiring, checked and replaced most of my ignition wires, just to be safe, and even eliminated the connector to the leading coil, just to see if that was somehow bad. All of this has been to no avail, still I have very little spark on the leading coil. Any advice? Can this be a program setting I messed up? Is the igniter bad in the coil?

Thanks in advance!

Claudio RX-7

iTrader: (1)

Did you ever try replacing the leading coil and igniter? What settings are you using?

Falcoms

I haven't replaced it yet, as I don't have an extra, and it was running fine (viewed with tester plug) on the stock ECU before the swap. I'm running the trigger in reluctor mode, trigger gain at 1, home gain 2, trigger and home filters at 2, trigger and home signal edge both falling.

Also, on a completely different problematic note, the car keeps running way rich. Just for giggles I dropped the load slice fuel map down to zero across the board, and it still started up and ran way rich (visible smoke from raw fuel out the exhaust, 10-11:1 AFR's on the WB O2 gauge). I mean I've seen some messed up stuff before, but this stumps me. The plugs aren't fouling out, either, as I've pulled them several times just to be sure, and they're not even that dirty, just a little raw fuel and some carbon on the face. The fuel injectors (stock high impedence N/A injectors) were rebuilt about 15k mi. ago.

Claudio RX-7

iTrader: (1)

Well its really very simple, if your leading coil is giving you weak spark its not burning fuel properly, this the rich AFR. Try a new coil, see what happens.

Falcoms

Well, figure I'd give an update on this. The other night I woke up realizing that if I'd had the +12v and signal wires switched on the leading coil, then the +12v would be telling it to fire all the time (and probably burn up the igniter) and the signal wire would give it just enough voltage to fire about 2-3 times a minute. Well, that turned out to be wrong, but it led me to the actual problem.

Basically, after putting the trailing plug wires on the correct coils, the trailing plugs stopped firing 180 deg. out. For the record, they are backwards because I have the signal wires backwards, so I took the easy approach. Now I got her tuned fairly well, I'm just playing around with ignition timing now as I've got a decent street tune on the fuel, and the "ignition quick map" setup, though a neat feature, only got me somewhat close.

Thanks for the advice Claudio!