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P1128 2001 Ford F150 Code - Front O2 Sensor Connectors Swapped

- Code Popularity: 1,524 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1128 2001 Ford F150?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Crossed HO2S Harness Connectors
  • Powertrain Control Module (PCM) Harness Connector
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How to Fix the DTC P1128 2001 Ford F150?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1128 2001 Ford F150 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1128 2001 Ford F150 Description

The Diagnostic Trouble Code (DTC) will set anytime the Powertrain Control Module (PCM) Detects Upstream Oxygen Sensors swapped from Bank to Bank. Heated Exhaust Gas Oxygen (HEGO) Sensor Monitor checks & determines if the HO2S signal response for fuel shift corresponds to the correct engine bank. The code sets when HO2S being tested is not indicated.

OBDII Code P1128 2001 Ford F150 - Front O2 Sensor Connectors Swapped - AutoCodes.com
P1128 2001 Ford F150 Code - Front O2 Sensor Connectors Swapped

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