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#1
03-10-2008, 02:35 PM
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Code P0171
Hi Guys,
My check engine light came yesterday when speed above 80 MPH. I took it to auto-zone to get he give this code P0171 and I asked to clear it for me. My rodeo run fine and no CEL come back on. Is any one knows this code is and any idea where should I start work on it? Thanks for in advance. 
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#2
03-10-2008, 04:06 PM
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Re: Code P0171
P0171
Fuel Trim System Lean Bank 1 How old are the plugs? How old is the intake manifold gasket?
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-Ryan Isuzu Moderator Car Show Tips Operations manager with a results-driven passion for process improvement FAQ 98-04 Isuzu Rodeo, Rodeo Sport, Amigo, Trooper SOLD - NOV2015 - 2000 Amigo, V6, HT winter, ST summer, 2wd
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#3
03-10-2008, 06:42 PM
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Re: Code P0171
80? Yikes I'd hate to pay your gas bill LOL. Can watch the gauge drop on mine when I go over 65.
With just the one code it could be hit and miss on trouble shooting. Start with plugs. Could be the o2 sensor reading a bit off. Manifold gasket usually has more codes associated with it but not always, could be it. Could also be an injector getting clogged.
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--Dave 1999 Rodeo LS 3.2 4x4 5 Speed 32x11.50-15 BFG T/A KO 3" Lift - Rancho 9000x Rear No-Slip Locker Flowmaster 2.25" 50 Series There is a very fine line between "hobby" and "mental illness." - Dave Barry
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#4
03-10-2008, 07:38 PM
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Re: Code P0171
thats what all my intake manifold gaskets started with . po171
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2006 liberty 3.7 6speed manual 1999 cherokee classic 4.0L 1991 wrangler yj 2.5L 2001 caravan 3.3 auto 1995&1992&1994 camry 2.2L SOLD 1991 silverado 1500 SOLD 2000 rodeo SOLD 
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#5
03-11-2008, 09:00 AM
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Re: Code P0171
Quote:
Last edited by klvaleri; 03-11-2008 at 02:30 PM.
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