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1998 Ford F-150 Lariat 4.6L MIL Lamp on
Came in for CEL always on. A quick scan test found P1157 HO2S22 always lean. A pinpoint test of sensor checks good. Tested circuit for shorts, non found. Tested continuity to PCM to sensor. BINGO! No continuity! Started at sensor, probing connection, back prob...
Summary posted 3/7/2002
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Related Documents & Media | VIN | 1FTZX17W2W |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0112 | Intake Air Temperature Sensor Circuit Low Voltage |
| P0231 | Fuel Pump Feedback Circuit Low Voltage |
| P1157 | Air Fuel Sensor (Bank 1 Sensor 1) Line High Voltage |
Message Closed w/Summary
Vehicle Data
1998 Ford F-150 Lariat
| VIN | 1FTZX17W2W |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0112 | Intake Air Temperature Sensor Circuit Low Voltage |
| P0231 | Fuel Pump Feedback Circuit Low Voltage |
| P1157 | Air Fuel Sensor (Bank 1 Sensor 1) Line High Voltage |
Video