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2004 Toyota Tacoma 2.4L Excessive Emissions, MIL Lamp on
Customer returned after driving 4 weeks 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.
FIX posted 2/11/2016
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Message Closed w/FIX
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17 Replies Received
17 Replies Received
Related Documents & Media | VIN | 5TENL42N44 |
| Engine | 2.4 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0171 | Fuel System Too Lean (Bank 1) |
| P2237 | Air Fuel Sensor (Bank 1 Sensor 1) I/P Line High Voltage |
Message Closed w/FIX
Vehicle Data
2004 Toyota Tacoma
| VIN | 5TENL42N44 |
| Engine | 2.4 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0134 | Air Fuel Sensor (Bank 1 Sensor 1) Heater System Malfunction |
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
| P0171 | Fuel System Too Lean (Bank 1) |
| P2237 | Air Fuel Sensor (Bank 1 Sensor 1) I/P Line High Voltage |
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