fouling out plugs ALOT!! need help.
 

Okay when i got the car back i was running ngk heat range 7.....fouled them out. heat range 6 fouled them out....and then today i replace them with heat ranbge 5's and they feel fouled out. Im running rich i know but there must be something wrong. any ideas?

Re: fouling out plugs ALOT!! need help.
 

SR? KA? I have no idea what you have I'm just guessing by the Nismo banner in your signature that you have a 240.......

Re: fouling out plugs ALOT!! need help.
 

he has a sr

Re: fouling out plugs ALOT!! need help.
 

o2 sensor could be F-ed. I would try replacing that and see what goes down...

Re: fouling out plugs ALOT!! need help.
 

fuel pressure regulator ? just a guess dont know much about 240's but o2 sensor sounds like a good one too also try map sensor could be throwing the fuel pressure reg off a bit? once again just guessing . good luck w/ it see u out and about this weekend?

Re: fouling out plugs ALOT!! need help.
 

I have an SR buddy. :D

Re: fouling out plugs ALOT!! need help.
 

for the nismo heads...what o2 sensor do i use?? can i use one off of a se-r?

Re: fouling out plugs ALOT!! need help.
 

LOL sorry to laugh right at ya but your asking me soemthing i know nothing about (nissans). I know generally when your engine is consistantly dumping a too rich fuel mixture, then your O2 sensor is needing replaced. Im not sure of the specifics but i would recommend taking yours out, and trying to scam one from antoher sr motor. try and get as close to what you have as possible. then try changing variables...good luck :thup:

Re: fouling out plugs ALOT!! need help.
 

:D

Re: fouling out plugs ALOT!! need help.
 

Also make sure your MAF is working right, this can mess with fueling a lot also..