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P1133 Diagnostic Trouble Code Discussion for June 2006

Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching

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Trouble Ticket Help Requests for DTC P1133
Help Request Posted
1999 Toyota 4Runner SR5 3.4L Hesitation, MIL Lamp on VIN: JT3HN86RXX
P1133: Air Fuel Ratio Sensor (Bank 1 Sensor 1) Slow Response. ... techs. This 4runner came in with a p1133 code. Replaced the front o2/fuel ratio sensor, Car came back with same code. Test drove and graphed o2 with solas found that it stayed between .500 and .700 and was usually at .660 or so. Tryed to lean it out by cre...
June 30, 2006