P1129 1998 FORD F150 - Downstream Oxygen Sensors Swapped from Bank to Bank
P1129 1998 FORD F150 Possible Causes
- Crossed HO2S harness connectors (downstream)
- Crossed HO2S wiring at the harness connectors (downstream)
- Crossed HO2S wiring at the 104-pin harness connectors (downstream)
How do I fix code P1129 1998 FORD F150?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
Cost of diagnosing the P1129 1998 FORD F150 code
Labor: 1.0The cost of diagnosing the P1129 1998 FORD F150 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
- Engine Light ON (or Service Engine Soon Warning Light)
P1129 1998 FORD F150 DescriptionThe heated oxygen sensor (HO2S) monitor determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank. The test fails when a response from the HO2S being tested is not indicated.
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