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P0134 Diagnostic Trouble Code Discussion for October 2006

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
1996 Volkswagen Jetta GLS 2.0L MIL Lamp on VIN: 3VWSA81H2T
P0134: upstream o2 sensor-no signal. I need some help from you VW guys. Id like to thank everyone who takes the time to offer help. This car origanally came in with p0132 (no upstream o2 signal). I found a vacuum leak & repaired. Also checked o2 voltage with dvom, sensor worked but only switc...
October 20, 2006