Just picked up an AP and went out tonight to see how rich it is actually running. Well it was bad to say the least

I tried stock, stage 1 and 2 maps. At idle and partial throttle, I'm getting ~12.8-13.0, however at WOT is where things go to ****, especially after 5K RPM. Intially I have a ~11.3 and drops to 11.0 but I had it down to 10.7 tonight. Needless to say, this needs to be leaned up heavily!

Any suggestions? I'm very new to this so making my own custom maps from the tuning software is definitely out of the question, as it stands now.

 

At idle/part throttle you should be getting highish 14's. Are you sure that sensor is calibrated correctly?

 

The sensor here being the stock wideband O2 sensor? Or othe sensors like the maf? Either way, how would I go about calibrating that?

 

that sounds way off, but alot of companies are doing that now a days. i leaned out my other car 3 points and gained tons of power ( over 35whp ) and my gas milage went way up as well ( somewhere in the area of 5-6 mpg )

 

What are you using to check A/F? I would make sure you get a new sensor before freaking out about anything. You should be around 14.7 at idle.

 

Using a Cobb's AP. The car has only 27,000km on it, I'd imagine the sensor still has plenty of life left in it.

 

Either the sensor is not calibrated (this is something AP has to do not you), or you have some serious problem like busted sensor or something else going bad. A stock tune if anything should be lean, not rich.

 

Yeah I'm not sure what to make of it. If it was the sensor, then my mileage on the highway should be in the crapper and driving overall should be quite sluggish, but it's actually quite good. Even in the city it's quite comparable to what others have been reporting. Also factor in my altitude (3500ft/1000m).
I'm gonna get it tuned regardless...sucks no one in Calgary is really familiar with Cobb's but insists they "can figure it out eventually"....at $150/hr

 

Ditch CObb and get uprev. CObb doesn't even support the G35/350Z anymore so good luck fixing the A/F calibration. I never had any issues with my uprev software reading accurate A/F, and if I did at least I know Jared would be there to assist.