Can a dying battery cause a bank of cyl to run lean?
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From: South Bend, IN (hometown) Indianapolis,IN (college)

my car has a dying battery which killed the alternator, and i check my codes this morning and one came up saying "Bank 1 was Lean" could my charging problems cause this, or do i have an actual problem?
Low fuel delivery due to low voltage to the fuel pump? Perhaps. But I'd think that the O2 sensor itself having a low-voltage supply would be more likely.
Another scenario would be running too rich caused by low-voltage misfires.
Another scenario would be running too rich caused by low-voltage misfires.
Originally Posted by ELMACHOGERACHO
how long can codes be read? cuz i just checked again about an hr ago, and that code was gone.
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marksssei
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Jul 19, 2004 05:38 PM






