Rb20det Cylinder 2 No Go

[Proximity Motorsport]

Hey all,

I got a r32 gtst-t RB20DET and a few weeksago it was running on 5 cylinders. I unplugged coilpacks one by one and found cylinder 2 was no go. I pulled out the sparkplug and coilpack and cleaned them, put them back in and it was good.

Its just happened again. Yesterday i change oil filter and oil. Then regapped plugs from 1mm to 0.8mm (with feeler gauges) Then started car and it was running on 5 cylinders. Checked them and it was cylinder 2 again. So i bought new plugs and put them in and still same thing. Then i pulled the coilpack off sparkplug and left it connected, started the car and it was definately working as electricity was coming out.

Still no good.... so i compression tested motor and it has 150psi across all cylinders. What could be happening?? Im thinking maybe the igniter??

I bought splitfire coilpacks.. on their way.. but im geussing they dont have a new igniter. Are there any cheap aftermarket igniters? Are r33 and r32 igniters the same? Or is it definately not the igniter///?

cheers

[R31Nismoid]

so your changing the plugs for what reason?

They are dead each time you pull them out?

[Simon-S14]

check the coil pack loom for corrosion and bad connection

[Proximity Motorsport]

i changed the plugs thinking they may be at fault.

The coilpack is sparking but some one PM me and said its easier for coilpack to spark to atmosphere than it is when its inside engine..

As for the loom.... i have llooked but not many wires are uncovered... i will try a mates loom and see how it goes..

also a question... i had the coilpack plugged into loom but not on sparkplug... turned the car on and sparks were coming from underneath where i expected at bottom of stem... but also at the top... is this not right?? Or is it meant to spark there too. Im guessing its not. Ive been told to put silicone on my coilpacks to increase their performance but never understood what they meant... im thinking maybe put silicome at the top to stop loose sparks??

thanks

[huddy]

yes put the silicon on the top - there is a thread in DIY section i think... something "misfire..." but it should not be sparking at the top hence the misfire you are getting.

[Proximity Motorsport]

ok... so still having troubles really in need of help.

Sum it up... cylindr 2 is not firing still. I know this cause when i unplug cyl 2 coilpack look it stays same (running bad) then any others makes it worse.

Remedies i have tried to fix it but to no avail..

Brand new Colder NGK Spark Plugs

Brand new SplitFire coilpacks

Igniter off a working skyling

Coilpack loom

Compression tested to 150psi

STILL NO GOOD!!!! What else can it be!! Im in dieing need. Please help

[Wheezy]

Have you checked that its not fuel that is the problem in #2?

Is the injector firing?

[Proximity Motorsport]

Have you checked that its not fuel that is the problem in #2?

Is the injector firing?

jus spoke to mechanic today nd he said to check if injectors r running. I dnt really know what im looking for but i geuss ill put a pices of steel rod against injector and use it as a stethascope (sp) and listen for a little tick. If number 2 had a dull sound it obviously isnt wrking correctly. But he said it still might tick but fuel just might not be getting through.

Ill check this sometime tomoro or sunday and post up.

cheers

[huddy]

i had another similar problem (one of the many previous bugs) and it ended up being injector #2 plug, was not connected securely enough to the injector - so maybe just check the plugs are all connected properly and wiring to them is ok...

otherwise... GL