idle air fuel

[turtle180]

i just got my first sr 240zx 1989 s13 and after a lot of parts i got the engine to run almost perfect except for the idle air fuel is staying around 10.9 and 12 now normally i would say thats way to rich but when it runs any leaner it starts to misfire... so as a new nissan guy just wanted to ask if that's normal for an sr... i also have a power fc and am running the stock sr MAF i currently have the o2 witched off with the power fc but it idles about the same air fuel eather way

[herbieS13]

thats rich a good AFR at idle is like 13.5ish

[sean350z]

What's your timing set at? You can try advancing it a little bit in the idle cells/target idle timing. Did you mess with the injectors or cams?

[tanman_s13]

Ideal air fuel ratio : KA24ET / KA24DET Forum (http://forums.nicoclub.com/ideal-air-fuel-ratio-t124772.html)

[turtle180]

no didnt mess with injectors or cams in the power fc or on the car... i adjusted the timing and got it to quit missing but it still running to rich... does anyone know what a good ignition degree is mine is now set at 14.... but every time i set the timing and restart the car it goes back to 34deg and according to my power fc