Car Running Rich

[thorpe84]

got a new exhaust for my car 2 days ago (r33 na series 2) and the guy said it was running rich because it had a strong smell to it.

he also said it has something to do with the cars computer or something.

i really have no idea what im talking about here.

why would it be running rich and how do i fix it?

any help would be great.

[heslo]

Running rich = too much fuel to put it simply. Take it in for a tune and that will fix your problems

[JieLine]

yeh i have the same problem, im thinking of gettin a SAFC II later down the track, its suppose to be good

[Links]

Skylines are notorious for running very rich due to the fuel maps in the ecu.. On top of that your now flowing more air so the ecu will put more fuel unnecessarily..

Problem is you can't just retune a stock ecu - you might need to look at something like a powerfc or if it's a R32 you could get an dr drift chip.. Also SAFC II is available for cheaper.. they will than tune the air/fuel ratios so that it doesn't over compensate..

Edited September 7, 2006 by Links

[mad082]

as links said, you can't tune the stock ecu. a safc2 will do the job fine.

[Dr_Drift]

lol.... tuning by smell...

More than likely your cats been gutted/stuffed or something if it smells at idle...

You need a wideband O2 sensor to check mixtures, not bodily senses like smell, touch, or sight...