air/fuel mixture

[zdude]

i think the previous owner f'd up my a/f mixture, maybe to "give it more power" which isnt gonna happen considering he knew jack sh*t about cars... anyway, when ever i accelerate, it back fires between shifts, sounds kind of cool when im really on it, but normal acceleration it sounds like a$$. also, when its idling, it sort of pops every couple of seconds, i heard on a different forum that that is normal, but i was wondering if that could be solved with the renewed mixture...also, i havent messed around with this sort of thing yet, and neither have any of my friends, so i was wondering how i would fix the a/f mixture...my first idea was cam timing, but now that i think about it more my guess is the valve timing

thanks
paul

[F3600]

maybe your fuel regulator is shot try change it with a new.

[zdude]

how much $$$ is that

[papershot]

The Nismo fuel regulator costs somewhere around $120

[zdude]

i dont have the money laying around to spend that for something i may not know still works, is there a way to test my stock reg. before buying a new one??

[F3600]

the stock one is less pricey call your nissan dealer... buy a Factory service manual for testing it ... i think you need a vacuum hand pump but im not sure. If you are too poor to buy the FSM search online , there some copy somewhere for the sr20det and ca18det but i think the testing is the same for the fuel regulator