Engine-Codes - Ford - P1138 FORD

P1138 FORD - Lack Of HO2S Switches Bank 1 Sensor 2 Rich

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1138 FORD Possible Causes

  • Faulty HO2S Bank 1 Sensor 2
  • HO2S Bank 1 Sensor 2 harness is open or shorted
  • HO2S Bank 1 Sensor 2 circuit poor electrical connection

How do I fix code P1138 FORD?

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 P1138 FORD code

Labor: 1.0

The cost of diagnosing the P1138 FORD code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the code detected?

The test fails if the Powertrain Control Module (PCM) does not detect the output of the HO2S in a calibrated amount of time.

Possible Symptoms

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

P1138 FORD Meaning

Sensor Indicates Lean The downstream HO2S sensors are forced rich and lean and monitored by the Powertrain Control Module (PCM)

P1138 FORD More Information

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