Cannot fix lean issue 1st 2nd gear '09 Cobalt

[Dusty05]

Found the missing usb cable lol. Try this tune and see if it is in better. Once you try it though post a log up so the tune can be adjusted.

Will do tonight after work, thanks!

[Dusty05]

You got it! I never thought to eliminate piston protection. I think that may have been it. The a/f is pretty close. Here's the scan.

[laser_racer]

Did you say you have a wideband?

[Dusty05]

Did you say you have a wideband?

Yes, we were showing 12.4-12.6 @ wot

[laser_racer]

Then your good lol.

[Dusty05]

Then your good lol.

Yes, we can fine tune from here. Thanks again for the help!

[laser_racer]

Not a problem thank you for choosing laser racer lol.

[SSKev]

Laser racer has the right idea with that tune, the enrichment rate (in the fuel tables, PE tab) is causing your problem. With it as low as it is in the stock tune, it takes forever for the computer to command your PE A/F

Kevin

[Dusty05]

Laser racer has the right idea with that tune, the enrichment rate (in the fuel tables, PE tab) is causing your problem. With it as low as it is in the stock tune, it takes forever for the computer to command your PE A/F

Kevin

Yeah, that makes sense. Do you guys think GM did this to try to save fuel since its the XFE model?

[laser_racer]

They might have but you won't know until you do some driving.