code PO171
06-08-2004, 10:14 PM
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code PO171
My car through a code PO 171 Bank 1 fule system lean. I tried seaeching the net, any ideas on what it can be? I do have an exhaust leak in the down tube before the cat. This is the first code in 82,000 miles. Fuel filter was replaced 10,000 miles ago. Why would bank 1 be lean and not bank 2?
06-09-2004, 02:22 AM
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Grabbed this for you.
I got the part on the way, 3 consecutive 'clean' trips and the code will reset itself 
Check for exhaust leaks that may cause a false lean condition to be indicated. An exhaust leak may cause outside air to be pulled into the exhaust gas stream past the HO2S, causing the system to appear lean
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