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Codes P0171 and P0174
Bank 1 and Bank 2 too lean
Installed a new AOS during the rebuild as there was oil in the intake tubes
Took the oil filler cap off at idle and there was a little vacuum in the crankcase. 2 fingers and little effort maybe three or four ounces of force to get the cap off, as it was definitely getting pulled by a vacuum when it was removed and installed.
I searched this forum and believe I am looking for a fairly substantial vacuum leak.
Anyone have experience with this?
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2003 S manual
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Threaded Mode
