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my CEL has been on for a few weeks on my 2001, 1.8t automatic.
Now, i'm a BMW technician, and come across this stuff on a day to day basis, but,,,, i dont have a VW scantool.
I borrowed a friends MAC tools scanner, he didnt have VW software, but he has obd2 generic software.
my fault code is for mixture to lean.
i tried going on the datastream to look at my o2 sensors, but the damn tester only shows one 02, and i dont know which one it is. the voltage on this one o2 hangs out around .6 volts, which would be fine if it was the sensor after the cat. but if its the before cat sensor, this is a bad reading. i'm pulling my hair out because this tester sucks. why would it only show one 02 sensor???
Whats the most common one to go bad first, the after or before cat sensor??
my car has 75k on the clock, so it wouldnt hurt to get them both, but i dont wanna fix what aint broke.
any ideas??
Now, i'm a BMW technician, and come across this stuff on a day to day basis, but,,,, i dont have a VW scantool.
I borrowed a friends MAC tools scanner, he didnt have VW software, but he has obd2 generic software.
my fault code is for mixture to lean.
i tried going on the datastream to look at my o2 sensors, but the damn tester only shows one 02, and i dont know which one it is. the voltage on this one o2 hangs out around .6 volts, which would be fine if it was the sensor after the cat. but if its the before cat sensor, this is a bad reading. i'm pulling my hair out because this tester sucks. why would it only show one 02 sensor???
Whats the most common one to go bad first, the after or before cat sensor??
my car has 75k on the clock, so it wouldnt hurt to get them both, but i dont wanna fix what aint broke.
any ideas??