2002 Volkswagen Jetta 2.0L with code P0134, upper sensor or the lower one for this code?

Question

2002 Volkswagen Jetta 2.0L with engine code P0134, is it the upper sensor or the lower one for this code?

Answer 1

HI there,

This code is for the Upper O2 sensor. No circuit activity detected bank 1 sensor 1. Sensor 1 is the O2 sensor BEFORE the catalytic converter.

Answer 2

Is the upper sensor

P0134 Volkswagen Code - HO2S11 Sensor Circuit No Activity Detected
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