RB20 Issue. Running like a rex.

[kurbn]

I washed my engine bay down on Tuesday earlier this week.. Car is running like its dropped cylinders. HOWEVER! previously to this I had not started the car for a week and a half I would say.

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

Still the same..

Pulled each coilpack and tested individually with a plug in it against the rocker cover.. spark on all 6

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

edit: So I swapped 2 and 6 (the wet plugs) into 4 & 5 with the coils as well..
now 4 & 5 is wet and 2 & 6 is dry... guessing either 2 shit plugs or 2 shit coils?

suggestions?

[cplagz]

sticky injectors, ecu, oxygen sensor, boost leak, coolant temp sensor

[kurbn]

right well this is strange..

- replaced the coils in 4 & 5.... the plugs are still wet.
- pulled the plugs out of my miss's daewoo and replaced the 2 wet plugs., 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?

[RICEY]

Leaky injectors?

[SimonR32]

itll be fuked coilpacks...

[kurbn]

well thats what I thought initially, but then when i move the plugs, the problem moves with the plugs, it doesnt make a difference swapping coils around.

Tomorrow I am going to get these 2 wet plugs and check for spark, I have tested all the coils for spark.. Only used 1 dry plug to test however.

[cplagz]

clean the plugs up with brake cleaner and a wire brush if you're desperate.

[DISTRBD]

25det time :boink:

[mitchy]

25det time :boink:

solves all 20 issues :lol:

[DCIEVE]

replace the plugs, if they're fouled no amount of swapping is going to help.

[kurbn]

Yeh was just trying to swap the plugs around to work out if it was the coils or the plugs.


solves all 20 issues :lol:

worked for Kim aka HR31EVO lol

[RRob]

Just bash some plugs in. Go for coppers aswell RB's love em.

[LooneyToons]

shouldnt u be happy ur rb20s running like a rex? hehe.

[Zuicider]

i had sumthing simular im my commodore when i washed down the engine. ended up being wet relays. taking off made it sound like a rex

[kurbn]

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.

[kurbn]

Found the problem.

So I am watching telly when I was running through my mind of wtf has gone wrong. Remembering that I took the cooler off the car before I washed it down. So ran out side and checked...

I forgot to tighten up the passenger side hose clamp on the cooler. Pipe had come off.. Explains why it only has an issue when the AFM is plugged in and why is wines through the cooler piping at 3k and wont rev harder.

Fail Fucking Boat.

[magic1]

Found the problem.

So I am watching telly when I was running through my mind of wtf has gone wrong. Remembering that I took the cooler off the car before I washed it down. So ran out side and checked...

I forgot to tighten up the passenger side hose clamp on the cooler. Pipe had come off.. Explains why it only has an issue when the AFM is plugged in and why is wines through the cooler piping at 3k and wont rev harder.

Fail Fucking Boat.

and your the captian

[aye.jay]

Hahaha,
You're a legend.
Made me lol.

[180SXTCY]

hahaha at least u wont make that same mistake ever agian mate