Hey guys, thanks for everyones help in replacing the LIM and UIM gaskets. Car is running great. Took it for inspection today and now it failed for something completely different. A P0171 code came up on their comp. It turns out that I did not notice because my check engine light was burned out. Can anyone tell me what this code means. Thanks.
Driveway Al
P0171 problem
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driveway Al
- SLE Member
- Posts: 26
- Joined: Fri Jul 22, 2011 9:06 am
- Year and Trim: 1996 Pontiac Bonneville
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96 SSEi
- Posts like a Northstar
- Posts: 1813
- Joined: Sun Aug 22, 2010 11:11 pm
- Year and Trim: 2000 Bonniville SSEi L67
- Location: Ontario, Canada
Re: P0171 problem
Hi, P0171 - Fuel Trim System Lean Bank 1
Could be caused by vacuum leak or dirty/bad MAF among other things. Try checking for leaks first on Bank 1. The one with the oil dipstick and filler. Follow the #1 wire from coil to find #1 cylinder and that is bank 1.
Could be caused by vacuum leak or dirty/bad MAF among other things. Try checking for leaks first on Bank 1. The one with the oil dipstick and filler. Follow the #1 wire from coil to find #1 cylinder and that is bank 1.
poverty forces one to do unorthodox things
2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am
2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am
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Mechanical Mike
- Retired Gearhead
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- Year and Trim: 99 SSEi
- Location: Buffalo New York
Re: P0171 problem
There's only one O2 sensor for all six cylinders so the problem can be with either bank.
2006 Chevy Monte Carlo SS
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ron350
- Posts like an LN3
- Posts: 459
- Joined: Mon May 26, 2008 10:28 am
- Year and Trim: 1996 Regal Custom
Re: P0171 problem
Check for a vacuum leak around the steel flex tube that runs from the Lower manifold to the EGR.