Bean

iTrader: (1)

I dunno if its my plugs or if its something else

I have a hunch that it might be my ECU wiring; I used solderless connectors when wiring up my DEFI HUD, and I used pin IG1 which is the ignition signal for cylinder 1 to the ECU

theoretically speaking, if this signal was lost, would the ECU put any fuel into the cylinder? because this happened INSTANTLY; no gradual stuff

i thought it might be a clogged fuel injector (this happened last weekend too); so i cleaned the fuel with some strong fuel injector cleaner; that made it work again but ever since i thought it was a coincidence because it shouldn't have worked instantly

i meant to pull my plugs to check them; but do any of you think the ECU wire could cause a problem?

awj

It could be the wire. I would check the plugs too though. Let us know how it goes. Good luck.

Black94RX-7TT

The ECU should throw a code if it can't "see" the injector.....

Black94RX-7TT

Oh wait...I re-read it. You say it was an ignition wire? Hrm...so there's a trigger wire for every cyl? I thought those cars had distributors, which would imply some sort of crank angle sensor, with probably four leads, then a single coil trigger.

AFAIK, pre OBD-II cars have no facility by which to determine misfires on a per-cylinder basis...so no, it probably wouldn't be programmed to cut fuel to just that cylinder.

Bean

iTrader: (1)

its showing a check engine light now; i'll diagnose the code when i get home

it cleared up a bit then went back when i stomped on the kickpanel; hopefully i can fix it before i leave work today


btw, its NOT smoking at all and i smell no unburnt fuel

its like its just missing but not spraying any fuel

Bean

iTrader: (1)

Fixed it!

it was the wiring on the ECU

i pulled the DEFI HUD off and straightened the wires and put electrical tape over their exposed areas, and no more problems

next time i'll solder them in instead of being cheap and using solderless connectors