Oxygen Sensor
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Audiworld Junior Member
Joined: Jun 2001
Posts: 30
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Oxygen Sensor
I need some help with choosing oxygen sensor for my 2000 TT front drive ATC engine.
My faults are; 17524 oxygen (lambda) sensor heating B1S1: open circuit
16518 oxygen (lambda) sensor B1S1: no activity
Audi part #; PRE 06A 906 262Q
POST 06A 906 262AJ
Bosch part #; Before cat. 16249
After cat. 16257
My questions; Is S1 before cat. or after cat.? Are my parts # correct? Where to get it for a good price?
My faults are; 17524 oxygen (lambda) sensor heating B1S1: open circuit
16518 oxygen (lambda) sensor B1S1: no activity
Audi part #; PRE 06A 906 262Q
POST 06A 906 262AJ
Bosch part #; Before cat. 16249
After cat. 16257
My questions; Is S1 before cat. or after cat.? Are my parts # correct? Where to get it for a good price?
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