super lean at part throttle

[Jiggalude]

My car has been parked for the winter. I started it once every month or so. The first time I took it out it ran great. 15.0 AFR at idle, 10-11 cruising. I never had a chance to get on it because it's not what anyone would call "street legal." However, I took it out two more times, and it pegs the Wideband in the lean category. Everything is stock except the big FMIC and a MBC. I do have ECMLink but haven't had a chance to take get a log yet. Just looking for ideas of what could cause it. It shouldn't have any boost leaks since it really hasn't been driven.

 

[2GFWDbeast]

well how lean is lean, what number was the wideband showing? Crusing with a/r at 10-11 is to rich.

 

[tips000]

clean your throttle body, disconnect and reconnect your baattery...

 

[Jiggalude]

Lean, is pegging the gauge. I'll try disconnecting the battery. The TB should be clean I just did that this past summer.

 

[98GSXtacy]

Even if you have done things before and not really driven the car since, problems can still develop. Gunk on the throttle body may have accumulated. Vacuum hoses may have corroded and caused tiny boost leaks. Do all of the regular maintenance checks and everything and then, if the problem still persists, we may be able to help further. And as always, posting a log always helps.