smcg3

got these two codes:

2142 (Blink Fault Code), VAG1551/2 Fault Code Number 00524 Knock sensor #1 Open or short circuit, Defective sensor Check sensor and wiring Symptom: Timing retarded, High fuel consumption, power loss, Boost pressure not attained

2342 (Blink Fault Code), VAG1551/2 Fault Code Number 00523 Oxygen Sensor Sensor Wiring or Sensor defective Symptom: Emissions not within specifications

I have 2 questions. First, which sensor (front or back) is #1? Second, could they be interrelated, i.e. one is causing the other? Or are both independent, and they both need to be replaced? If I were to replace the knock sensor, should I do the other one at the same time, or is it ok to do them seperate?

hdmyers

fault codes eh? The knock sensor code seems similar to my car...uses gas, low boost.

I suppose i should check my codes