Just thew a code...P0171 ...........

08-11-2003, 03:48 PM

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Just thew a code...P0171 ...........

Lean fuel trim system bank 1. Anyone know what may be causing this?

08-11-2003, 06:26 PM

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Re: Just thew a code...P0171 ...........

Dead O2 sensor, or exhaust leak. If the O2 sensor reads a constant .450 (or around there) its dead.