P0139 codes
#1
P0139 codes
I was plagued with CEL P0139 02 sensor ckt slow (bank 1) instead of replacing the 02 sensors (oem are pretty expensive) I removed the top sensor (just behind the engine on the exhaust manifold and cleaned it by soaking it in gasoline overnight and blowing out all the crud built up on it with compressed air. It's been 7k miles and no codes
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Steffen.Johnson
R50/R53 :: Hatch Talk (2002-2006)
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01-26-2021 09:11 AM