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Discussion Starter · #1 ·
Hi I have a 2009 Touareg V6 3.6Lt
originally had codes P0430 P0420 and had All CATS and O2 Sensor Replaced , drove it for 50 Mi. and light came back on now with different code P0133, checked all connections all looking good
Any idea what it may be ??
Will appreciate your help
 

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2008 V6
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If you did the work yourself then check the connections and wiring. Check for wires on the exhaust that have melted.
If a shop did the work take it back and let them figure it out.

16515/P0131/000305 - Oxygen (Lambda) Sensor B1 S1: Signal too Low

Possible Causes
Wiring to Oxygen (Lambda) Sensor Bank 1 Sensor 1 faulty
Oxygen (Lambda) Sensor Bank 1 Sensor 1 faulty

Bob
 
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