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What would cause P0171/P0174

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Old 06-09-2007, 07:14 PM
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Default What would cause P0171/P0174
I know what they are, bank lean 1 &2 but what would cause this condition? Fuelpump? TIA Chris
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Old 06-09-2007, 08:20 PM
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vacuum leak most probable
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Old 06-09-2007, 08:58 PM
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Check your fuel pressure and vacuum first .... Both are relatively easy to do and that should get you started.
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Old 06-09-2007, 09:00 PM
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Thanks guys!!
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