Misfiring, Need Advice

[Rozza]

Hey all, i just recently bought an r32 GTR, havn't signed any papers yet because im having a few problems with it.

When i start it up cold i let the car run for about 10 minutes before driving out, but for about 15 minutes i cant get it over 2000 revs it just keeps misfiring, eventually after driving it for a bit the thing sorts itself out a bit and will misfire but at higher revs.

I was told that because it has been sitting round for about 4 months not being driven (direct jap import) the fuel would have gone bad and may have gunk all through the engine. I'm planning on running it empty then filling it up and putting a flush through it.

So guess my question is, is it probably just because its been sitting so long or most likely something else?

Thanks for any advice

Edited October 17, 2007 by Rozza

[d00dz]

Check spark plugs

Check coilpacks

Check/clean afm.

Check ignitor pack

Check fuel filter

Check injector

Kinda in that order. Im thinking it's the coilpacks.

There are like a million threads on missing here on SAU, common problem with skylines.

[S04R3R]

It could also be an AFM or sensor problem.

[R33Turbo]

Try gapping plugs down to 0.8

[fob2nv]

+1 for airflow meter.

[JBird]

Try not to idle for so long, you will glaze the bores. You can drive off after say a minute and go easy as in no redlining until oil (not water) temps are up.

Probably old fuel.

If not that AFM.