Need Help Eng Is Missing On #4

[boosted_sa]

My s1 r33 is missing on #4 cyl.

Current fault finding:

-Swapped coil pack and spark plug (nil change)

-Swapped ignitor (nil change)

-Continuity check from ECU (PowerFC) to ignitor (all good)

-Continuity check from Ignitor to coil pack (all good)

-Had a listen to injector, sounds the same as the rest, also plug looks wet.

Any sugestions?

Maybe the ingnition output from ECU? or maybe injector?

Please Help, I'm pulling my hair out.

In SA.

Kym

[blind_elk]

Did you swap #4 coil to a different cylinder, eg 3<->4, or did you simply try another / spare coil on #4?

But, based on what you have said so far, it sounds like the injector is flooding #4. Try getting it cleaned (actually, get them all cleaned).

[boosted_sa]

Yeah swapped coil pack with another cyl - fault didn't follow

I'm gonna try replacing all the injectors.

I want to try a std ECU to eliminate the ignition output from the PowerFC.

It my only car ATM so want to get it sorted out ASAP.