What should the AFR readings be at idle? I have my car tuned at 11.7 right now at idle. I just want your guy's input.

 

most people run a lean idle, to help prevent fouling plugs.

 

13.6+ AFR's are smooth for me.

 

14:1 @950rpms

 

12.7:1 @ 900rpms but thats a bit too rich.

 

Mine is always on RIch.. Is something wrong with my gauge?

 

13.5 or area gives a nice smooth idle. The car tends to run rougher when you go leaner than this.
Anything lower than 13 and you're just wasting fuel and building carbon.

 

Thanks guys, I'll tune for 13.5 tomorrow.

 

Yeah, mine idles at about 10:1, no airpump

 

Autometer a/f gauge running off the stock o2 sensor? Nothing wrong with it, just widely inaccurate.

 

get it fixed yet?

 

11.7 is a little rich, I had to lean mine out to prevent plug fouling and smoother run.

 

I got to 13.6 by dong an ALL DATA INIT on the commander. Make sure that you back-up your map before resttig the PFC. Basically restting the PFC to the base map. and then I let the PFC "learn" by letting the car idle for 45 minutes(15 mins w/ no elec load, 15 mins w/ the rear defog on, 15 mins w/ rear defog & parking lights on). DOing this lets emsures a smooth idle w/o "surging/hunting". Reload pevious map excluding the values in the idle cells.

 

I'm not much formiliar with tunning so please don't flame me
I guess the lower the number the richer the mixture m"I right?
How do you tune it, with just a comander, or you need a datalogic?

Thanks.

 

commander+wideband for accuracy

 

Got no wideband yet...

 

You can pay an experienced tuner $400+ to tune your car to your mods on dyno using their equipment. Or you can buy a wideband$400 and the datalogit $300 and tune your own car on the street. Remember, everytime you add a new mod to your car, you should make sure that your fuel maps are safe for that configuration. Here are the links to buy those products:

http://www.fc-datalogit.co.nz/model-status.html
http://www.techedge.com.au/vehicle/wbo2/default.htm
and a laptop computer. A cheaper 1G P3 should work fine you don't need a supoer fast PC to tune.