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P0134 Diagnostic Trouble Code Discussion for December 2011

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
2004 Toyota Corolla CE 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1NXBR32E14
P0134: O2 Circuit no activity Bank1 sensor1. ... power no hesitation. Had code P0031,PO134,P0300,P0301,P0302,P0303,P0304. tested o2 and found heater circuit bad replaced with factory o2 and scanner s...
December 07, 2011
1998 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNCT18W4W
P0134: Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Activity. Scan tool shows bank 1 sensor 1 inactive and not switching. Replaced sensor and same result. Tested wiring and found everything ok. Hooked volt meter up to plug-in at computer and can see sensor switching. All other wiring (powers, grounds, etc.) test ok as we...
December 09, 2011