Rb20 Misfire

[Galois]

Smelling petrol can be a bunch of problems, including a stuffed cat

*awaits pic of sufed cat*

Def try to use the stock thermostat, just check it works correctly. The temp gauge in the car, even the stock one which is hardly accurate, will give you a heads up before anything goes wrong.

Hey mad, at what point of modding should you use 8 temp plugs? With big turbos, fuel pumps and track use?

[slider_grub]

I dont have a cat, using straight pipe with one center silencer

I didnt knwo anything bout plugs when i changed them. The mechanic was the one who installed it for me.

Smelling petrol can be a bunch of problems, including a stuffed cat

*awaits pic of sufed cat*

Def try to use the stock thermostat, just check it works correctly. The temp gauge in the car, even the stock one which is hardly accurate, will give you a heads up before anything goes wrong.

Hey mad, at what point of modding should you use 8 temp plugs? With big turbos, fuel pumps and track use?

[slider_grub]

I took the NGK Irridiums out yesterday and put back my old Denso IK22s just to check if there is any improvements since the Densos looked fine. The NGKs appeared whiter then a Japan GT Queen! I was running lean! Its real funny as on the dyno, it was ok. Unless my FPR settings had changed. SO i set it back at around 42 psi for now. I still get that jerk at full throttle/ full boost but not as bad as before. Will need to change the plugs again and try dyno-ing the car again to set it right.

[tappy]

What are you gapping your plugs at?

[slider_grub]

They were stock gaps, 0.8mm i believe. I didnt measure them though after taking them out.

What are you gapping your plugs at?

[Galois]

I thought stock was 1.1mm...

[ima_slap_joO]

Yeah changing spark plugs is the first step, and regapping them is the second. You might want to think about just going coppers mate, a lot of people here find platinums and iridiums don't last long enough to make the price worth it, and MANY have found they don't last much longer than coppers, if at all. I had a mate whose soarer used up iridiums in 3000km...

Glad the issue's fixed, misfires suck

Certainly do, i was so frustrated i was beginning to wonder why i had bothered to get the skyline, i remember now

coppers? every place i go to look into the sparkplug book and its always platinums recommended, and not really knowing what i should get i just go by that.

i did have an issue with coilpacks though, so it got me in 2 minds about what it could possibly be, knowing that old coils are usually the issue, not new plugs.

thanks for the advice mate

[Galois]

If you want to read up on spark plugs and what to by it's all covered in the spark plugs thread, I'll even give the link

http://www.skylinesaustralia.com/forums/Sp...gs-t104405.html

[slider_grub]

Thanks a lot for the info bro, looks like i was using RB25 NEo plugs in my 20... Hmmmmm.

A mate of mine suggested gaping down to 0.7 or o.65. Maybe ill try it and keep you all posted. My tuner said my air flow could also be a problem giving false temperature and flow readings to the ecu. Will need to swap that one too and see what happens!

If you want to read up on spark plugs and what to by it's all covered in the spark plugs thread, I'll even give the link

http://www.skylinesaustralia.com/forums/Sp...gs-t104405.html