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P1133 Diagnostic Trouble Code Discussion for December 2005

Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching


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Trouble Ticket Help Requests for DTC P1133
Help Request Posted
2001 Toyota Tacoma DLX 3.4L MIL Lamp on VIN: 5TEHN72N01
P1133: Air Fuel Ratio Sensor (Bank 1 Sensor 1) Slow Response. Vehicle came back to the shop at 43280, same problem but sensors are OK. So we check air induction system, fuel pressure, exhaust system, injectors (cleaned), sensors circuit. All of these is working properly. All the data indicates that we have to replace ECU...
December 23, 2005
2001 Toyota Tacoma DLX 3.4L MIL Lamp on VIN: 5TEHN72N01
P1133: Air Fuel Ratio Sensor (Bank 1 Sensor 1) Slow Response. Vehicle came back to the shop at 43280, same problem but sensors are OK. So we check air induction system, fuel pressure, exhaust system, injectors (cleaned), sensors circuit. All of these is working properly. All the data indicates that we have to replace ECU...
December 23, 2005