Thread: 5mo OOC, new battery, now whack AFR's

I'm running calum RT and have been since day one of boost. With the dead battery I naturally had to load the tune, which I've done plenty of times to know I did it correctly. So that's not the issue. She had a mild street tune that was a little more rich than I'd like but WOT was spot on between 11-11.5, rich idle and cruise around 12.5-13. Now getting her running on Sunday, WOT is still good but idle zeros out lean and cruise speed, at 15-20psi vacuum, is upwards of 16-17.5...I don't like that. Also my idle will tach up to 1600 RPM for no reason and sometimes I'm able to blip the throttle so she'll drop back down to 800-900.

I topped her off with 4 gallons of fresh gas in hopes maybe that'd make a difference and answer my questions. No change.

I regrounded the MAF which seems to have leveled off the idle but now it won't idle at all. It idles for a moment then dies.

I'm just baffled as she was running mint 5mo ago when I parked her for winter.

Try some dry gas (heet etc). My Durango wouldn't start after a thaw out at one point and it wound up just being water in the line.

With a day off yesterday, I hopped on the highway and drive the tank dry. I filled up with 10 gallons of 93, no change.

Turned out to be a boost leak

lol, was going to say you have a leak, but you already found it. good job reporting back

Maybe you can help here? http://www.sr20-forum.com/turbo/45799-year-3-no-cold-idle-checklist-help-please.html