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P0134 Diagnostic Trouble Code Discussion for March 2007

Heated Oxygen Sensor (Bank 1 Sensor 1) Signal Remains At Center

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Trouble Ticket Help Requests for DTC P0134
Help Request Posted
1999 Volkswagen Beetle GLS 2.0L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 3VWCC21C4X
P0134: oxygen sensor B1-S1 no activity. This Beetle starts and idles fine but stumbles when the throttle is pushed. It revs smooth if you push the throttle slowly. At full throttle no load the engine leans out chokes then starts to surge. Classic MAF problem but the new MAF nor a known good one off ...
March 22, 2007