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Engine running lean code...

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Old May 1, 2007 | 05:31 PM
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Default Engine running lean code...

Is there anyway I can fix it? or do I have to take it into a shop?
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Old May 1, 2007 | 07:30 PM
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vaccum leak. Spray wd-40 or brake cleaner around tb and other areas and when motor revs higher theres your leak.
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Old May 1, 2007 | 09:26 PM
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k i will check it out! thanks!
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Old May 1, 2007 | 11:21 PM
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i had the same thing did ur check engine light come on? my problem was my stinger intake was loose hope this helps.
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Old May 1, 2007 | 11:29 PM
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I would also make sure your O2 sensors are working to spec.
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Old May 2, 2007 | 04:03 AM
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Originally Posted by max'svette
I would also make sure your O2 sensors are working to spec.
How do you test O2 sensors?
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Old May 2, 2007 | 04:29 AM
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I have a blackwing on there that I recently put on and a new MAF... guess I will check all those connections
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Old May 2, 2007 | 05:47 AM
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Originally Posted by GrowLnZ06
and a new MAF...
I think we have a winner here. The new MAF is likely the issue, swap the stock unit back in and see if the code goes away with it. Your new MAF likely doesn't match the calibration in the computer.
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Old May 2, 2007 | 06:48 AM
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I cant put the old one back in... one of the 3 wire things is broken... somehow... no clue... but car wont run right with it... the one I have in it... has a screen in it... that have anything to dow ith it?
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Old May 2, 2007 | 09:33 AM
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Is it a stock GM? Know anyone whose you could swap in and verify its the MAF? I have a feeling this may be the source of the issue.
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Old May 2, 2007 | 09:49 AM
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its a grenalli or whatever its called? but it has a screen... my stock Z06 one didnt...
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Old May 2, 2007 | 10:39 AM
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If your car is really running lean, don't let it stay that way very long.
I would not have thought it possible, but a friend's Corvette was running lean, and the exhaust got hot enough at the outlet tip to make the paint bubble and peel off the bumper above the exhaust tip.
On his car, it turned out to be a defective O2 sensor.
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Old May 2, 2007 | 11:24 AM
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it seems to be idling just fine and everything I really dont know how to tell if its running lean... that code only pops up when its really warm out and I have the AC on...
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Old May 2, 2007 | 12:17 PM
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The Granatelli's are known for causing issues, I would get a stock unit. If you do a search, I think you will find out others have had similar issues.
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Old May 2, 2007 | 02:27 PM
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great... how much is a stock one... since I just basically threw away 365 dollars into this...
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Old May 2, 2007 | 05:06 PM
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Do you know anyone who has a stock one you can borrow, that would provide a clear indication the MAF is the problem before buying one. As for where to get it if you need one, Gene Culley. You can sell the one you have if that is the problem and recover some of the money. Your other option would be to tune it out.
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Old May 3, 2007 | 06:31 AM
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I can tune it out with HP tuner correct?
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Old May 3, 2007 | 06:41 AM
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Should be able to, I think it is just a mis-match between your current MAF and the prior one. Only reason I suggested borrowing one is that it would tell you right away that the MAF is the source of the problem and then you can solve the problem.

There may be a lot of help on the HPTuners web site forum on this too.
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Old May 3, 2007 | 09:34 AM
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Should i descreen it before I use the HP tuner?
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