[Hanomz44]

2004 Jetta 1.8T AWP

The car is throwing a P0130 Bank 1 Sensor 1 Faulty Code, I cleared the code and drove the car for a day (the car drove horribly until it adjusted ) 02 sensor is reading .8 - 1.7 Volts until I removed the code again, and now the the the car is running perfectly with a lower more regular 02 sensor voltage. Until today when a completely separate to this issue code popped up and when I cleared it the P0130 code came back and the car runs terribly now. Sorry if hard to understand the issue has me confused, is the 02 sensor just bad or what do you think is going on?

02 sensor code seems to come back when the ecu is reset, but goes away after driving the car for awhile, but will come back if ecu is cleared again.

 

[XDleader555]

That code is for the heater inside the O2 sensor. O2 sensors need to be at a certain temperature to measure correctly. When you clear the code while the car is warm, the O2 is already at temperature.

The fix is to replace the upstream O2 (before the catalytic converter)

 

[Hanomz44]

That code is for the heater inside the O2 sensor. O2 sensors need to be at a certain temperature to measure correctly. When you clear the code while the car is warm, the O2 is already at temperature.

The fix is to replace the upstream O2 (before the catalytic converter)

Going to get a new 02 sensor today. Before I do though just wanted to mention that if I turn the car off and back in for like 2-3 minutes it runs great with normal 02 readings and then randomly goes poor and gives high 02 sensor readings and horrible performance. Would a bad 02 sensor still do this ?
Thanks