my car is tunned with a afc to run rich

at idle, the gauge is always at the richest, but when i drive the gauge bounces around from lean to rich alot. But when idle always goes back to richest or somewhere near it. Is this normal?

 

Sounds like you're running way rich at idle...it should cycle down just like it does when you're cruising.
Austin

 

Which A/F gauge are you using?

 

so it should cycle down at idle like it does when im driving?

is that bad or good? i had the afc tunned on the dyno by a professonal shop...

 

What do you have installed on the car?

 

autometer

 

Hmm, there is your problem right there...get a real one, they are pricey. Greddy is decent, but not exact. Motec is something like 1600!

 

aem cai, dc headers, greddy exhaust, aem pully, aem cam gears, afc

 

The gauge will always move around until you give it full throttle. You'll get a more consistent, slower changing readout at full throttle. Your's is normal. I asked the same question when I got mine installed.

 

DC Header....

Not sure what your problems is...you should be able to lean down your idle on the AFC. Does your exhaust smell like it's running rich?

 

i dont know what an exhaust smells like when running rich

and i dont wanna mess up the tunning with my afc since it was tunned on the dyno, but what do u guys think?

 

Build your own "real" wideband 02...
http://www.techedge.com.au/vehicle/wbo2/default.htm.

 

what will this do, give me a more accurate a/f ratio reading?

 

It is a TRUE wideband 02. Your readings wll be more accurate...
A lot of the Hondata users are using this setup.

 

i dont think i need to go that hardcore yet...