Lean fuel bank error codes, PLEASE HELP!
Thread Starter
Burning Brakes
Joined: Dec 2004
Posts: 1,092
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From: Port Charlotte FL
Lean fuel bank error codes, PLEASE HELP!
Hey guys, I posted this a few days ago with no success so I'm going to give it another shot. The car has a very rough idol, and im getting a ''Fuel bank 1 & 2 lean'' error code. I've ran a bottle of techron along with chevron gas to try and clean up the fuel system with no success. Any idea what the problem might be? PS: the car has 54k miles on her.
Instructor
Joined: Jul 2001
Posts: 183
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From: Severna Park MD
St. Jude Donor '08
Originally Posted by ls1vette97
Hey guys, I posted this a few days ago with no success so I'm going to give it another shot. The car has a very rough idol, and im getting a ''Fuel bank 1 & 2 lean'' error code. I've ran a bottle of techron along with chevron gas to try and clean up the fuel system with no success. Any idea what the problem might be? PS: the car has 54k miles on her.
Jim M
Thread Starter
Burning Brakes
Joined: Dec 2004
Posts: 1,092
Likes: 0
From: Port Charlotte FL
Jim, there is a tiny hole by the hose clamp on the accordian duct but it's never given me any problems in the past 6 months. I do have a twin flow intake btw. Thanks for the advice!
Originally Posted by Jim M
I'm only guessing, but it sounds like you have an air leak between the MAF and the throttle body. I'd check the intake system first to be sure everything is tight. Could there be a hole in the accordion coupler between the airbridge and the throttlebody? Electrical connections to the MAF and temp sensor in the airbridge OK? I guess it could be a bad MAF or oxygen sensor, but I don't know how to test them. Could you have contaminated fuel or water in your gas? That's about all I can think of, hope it helps.
Jim M
Jim M
Pro
Joined: Dec 2002
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From: Upland Ca
I would check the MAF too and make sure everything is sealed tight. The other thing is if you have mods. I found my Granatelli MAF threw codes ALL the time. As soon as I put the stock Z06 MAF on, the problem was resolved.
Good Luck!
Good Luck!
Racer
Joined: Jul 2001
Posts: 386
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From: Round Rock, Texas, USA
Originally Posted by ls1vette97
Jim, there is a tiny hole by the hose clamp on the accordian duct but it's never given me any problems in the past 6 months. I do have a twin flow intake btw. Thanks for the advice!
