rb20 misfire

[s15_spec_r]

right lads, its starting to annoy me head, ive put a new afm, brand new grade 7 iridium plugs and nearly new splitfire coils into my r32 but its still misifreing :(

could the plug gap be causing it? i didnt check the gaps on the plugs i just lobbed them in. what should the gap be and how do i go about changing it?

cheers

[nicky h]

wouldnt say its the gaps on the plugs , are the wires to the coilpacks ok and all wire in the plugs

[Stonie]

What make are your plugs?

[s15_spec_r]

ngk iridium. twas bog standard ngks that came out of it so a colder grade plug can hardly make a shit of it, i used the same plugs on my s15 wihout any problem

[200sx]

gap should be about .7 for a skyline i think.......

[mick-skyline]

Could be the gap. But could also be fueling... Ie pump or a dirty filter... Depending on what sort of misfire..

[nikkisixx69]

check your fuel pump!!!!! i think alans was doing the same thing and when he changed the fuel pump it was perfect!!!!

[s15_spec_r]

sound boys. off to flea bay for a walbro for meself so

[git]

Could be the gap. But could also be fueling... Ie pump or a dirty filter... Depending on what sort of misfire..

the man speaks right ! what type of misfire is it ?

[s15_spec_r]

ya can hear it kinda spluttering on idle and when ya rev it stays spluttering, will pull up to 4k with a small bit of hesitation but struggles to pull from 4k-5k rpm. does a good bit of popping to everytime i change gear but thats prob down to the gay screamer pipe

[git]

ya can hear it kinda spluttering on idle and when ya rev it stays spluttering, will pull up to 4k with a small bit of hesitation but struggles to pull from 4k-5k rpm. does a good bit of popping to everytime i change gear but thats prob down to the gay screamer pipe

cas ??? common issue wit em !

[s15_spec_r]

cas? explain?

[mick-skyline]

Cam angle sensor (CAS) it adjusts the timing slightly. Could be wanked, but I'd do the pump first anyway, get it from temple tuning in the uk, should be about 75-80 quid

[s15_spec_r]

nice wan mick, timing was my next guess, ordered the pump there 90euro delivered, woop, should hav it by monday........... il get the bitch going yet

[Newsome]

Did you try the ignitor pack? At the back of the rocker cover, it powers the coilpacks. Gives trouble in them also.

[200sx]

pump is always a good upgrade anyway....seems like most other stuff has been replaced already....get a feeler gauge,gap the plugs to .7m and as newsome said try another ignitor pack as these are a common problem,new pump and do them two things and id be confident in saying it will be running 100 percent.....

[s15_spec_r]

cheers for the help lads :D

[tweek]

Probably a silly question you probably checked before you bought the car but have you compression checked it?

[slithertooth]

Probably a silly question you probably checked before you bought the car but have you compression checked it?

Would be checking this first if it's not been done

[s15_spec_r]

nope havnt done a comp test yet, but knowing my luck it will be down on a cylinder and ill be left bankrupt trying to fix the cunt :(

[topdog]

nope havnt done a comp test yet, but knowing my luck it will be down on a cylinder and ill be left bankrupt trying to fix the cunt :(

Think positive bet the compression is fine! Had the exact same prob with my S13 and it was the fuel pump, Bet yours is the exact same, fuel pump will sort it :D

[Prodrifter86]

Fuk hope ya get it fixed dude.













ya shud have bought my car :p

[s15_spec_r]

i got it for hav what you wer askin bud :P
, somehow i still think it will work out cheaper to fix this slut hahahaha

[Random Rs]

raising the dead here but did ya sort it in the end? what was the problem as im having the same symptoms on my 32........