Rb20 Missing Like A Dog

[BANGN]

I washed my engine bay down on Tuesday earlier this week.. Car is running like its dropped cylinders.

I have put the ignitor and coilpack looms on a GTR and it ran perfectly fine so I know they are ok.

I have replaced the airflow meter also

I just got a set of secondhand coilpacks and before installation diagnosed cyl 1 and cyl 6 have wet plugs.. so I replaced number 1 & 6 coilpack.

plugs are still wet and runs the same..

swapped number 1 plug into pot 2 and vis-versa to check that plugs were not faulty... number 1 is still wet and so is pot 6

where do I go from here... CAS? ECU? there is alot of fuel smoke coming out the exhaust also, guess thats because the oxy sensor thinks its running lean?

Edited August 1, 2009 by BANGN

[BANGN]

just replaced the CAS.... still missing..

wot... the ... f*k.

stab stab

[Piggaz]

SOunds like a injector has kicked the bucket. Pull them out and get them tested.

[BANGN]

just pulled all the coils and checked for spark for each one... there is spark on all 6 coils.

would the injectors cause it to miss tho? sounds like a WRX and is pouring fuel out the exhaust!

[bbe]

injector would not do it.

have you checked all intercooler and intake plumbing is not leaking and all done tight.

check you afm plug, makesure the afm is nice and tight in the intake and sealing up.

other wise might still be some water in the look some were.

good luck with it all

[BANGN]

Decided to run the car up again and rap the throttle a couple of times and very swiftly pulled all the plugs again.

1 - Dry & Black

2 - Wet & Black

3 - Dry & Black

4 - Dry & Black

5 - Dry & Black

6 - Saturated and Black

So I put the plugs from 2 & 6 next to eachother in 4 & 5 and ran the car up... only 4 & 5 are wet.. so its either plugs or coils.

- replaced the coils in 4 & 5.... the plugs are still wet.

- pulled the plugs out of my miss's daewoo and replaced 4 & 5 only, started it up and ran smooth then started getting rough and smokey again (plugs were rather different tho, but they still pulled out wet)

- put my plugs back in but swapped 1x wet plug to cyl 2.

- cyl 5 was dry but cyl 2 was slightly wet.. but the car ran smoother and I think smoked less. (I asume this is because because the faulty cyl's were spread out now making the motor turn over smoother)

replace all the plugs you think?

Edited August 1, 2009 by BANGN

[Adriano]

For $20 i would replace the plugs.

[BANGN]

well I am getting somewhere now.. replaced all the plugs and doesnt miss... went to rev it up and it bounced of 2800rpm... At this time remembered my AFM was unpugged...

plugged in the afm i got from KYP.. it started running rich as a bitch and rather rough and would not rev above 3k, it didnt bounce it just refused to rev harder..

so better take the AFM back then.

[BANGN]

put another AFM in, car started, ran fine..

waited a few min, still fine.. gave it a rev... fell over again and runs like shit.. unplug the AFM and it runs smooth but rich.

AHHH

[BANGN]

prob solved.. Forgot to tighten the IC pipe which fouled my plugs

expensive and embarrasing lesson.