Oxygen sensor audi a4 1998 please help!!!!!!
#1
05-08-2010, 06:46 PM
Oxygen sensor audi a4 1998 please help!!!!!!
My check engine light has come on. I scanned it and noticed the code was P0134. Which is the O2 sensor. I need help figuring out if the sensor is upstream or down! How the hell do I figure that out?! Please help! 
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drft1
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