joeyvaz

I just scanned the care (2001 Allroad) and got these codes:



17521 - Oxygen (Lambda) Sensor; B1 S1: Internal Resistance too High
P1113 - 35-00 - -
17539 - Oxygen (Lambda) Sensor; B2 S1: Internal Resistance too High
P1131 - 35-10 - - - Intermittent
17867 - Exhaust Gas Temp Sensor 2 (G236): Implausible Signal
P1459 - 35-10 - - - Intermittent

Can someone please assist on telling me which o2 sensor is which. I also need to know which sensor is which.

Thanks,
Joe

paulroad

did yu first clear and see if they return?

samm

Was your check engine light on? If not these are random codes that are tough to diagnose.

joeyvaz

Yes I did. And unfortunately, the returned almost immediately. Now, I've had a faulty coolant temp sensor that was swapped out today for a new one. Is there any corrolation between the two. And maybe readiness needs to be reset on it's own over time? Or is this just wishful thinking on my part.

Thanks,
Joe

joeyvaz

Samm, check engine light was on. When it first came on due to the coolant temp sensor last week, I scanned and there was nothing there with regard to the EGT sensor. I replaced my coolant temp sensor today and VAG'd the car to clear the error for the CTS. This is when I noticed the error for the EGT. I cleared all codes, but they returned after a couple of minutes (not the CTS code-that is gone)

I have 85k on my 2001 Allroad so I can expect to replace the O2 sensors at this point. But I'm looking for more info on the EGT before I purchase them.

Thanks,
Joe