P2237 Diagnostic Trouble Code Discussion for January 2016
Air Fuel Sensor 1 (Bank 1 Sensor 1) Pumping Current Signal Open
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| Help Request | Posted | |
| 2004 Toyota Tacoma 2.4L Excessive Emissions, MIL Lamp on VIN: 5TENL42N44 P2237: Air Fuel Ratio Sensor 1 (Bank 1 Sensor 1) Pumping Current Signal Open. ... with light on. P0171 freeze frame indicates STFT 19.5% LTFT 28%. Tested front o2 and heater circuit within spec, no issues or short found in wirirng. Have not gotten to the ecu yet. Vehicle drives normal, no misfire, sl... |
January 27, 2016 | |
| 2004 Toyota Tacoma 2.4L Excessive Emissions, MIL Lamp on VIN: 5TENL42N44 P2237: Air Fuel Ratio Sensor 1 (Bank 1 Sensor 1) Pumping Current Signal Open. ... with light on. P0171 freeze frame indicates STFT 19.5% LTFT 28%. Tested front o2 and heater circuit within spec, no issues or short found in wirirng. Have not gotten to the ecu yet. Vehicle drives normal, no misfire, sl... |
January 29, 2016 |
