Engine-Codes - Isuzu - P1138 ISUZU

P1138 ISUZU - HO2S 2 Voltage Stays High Rich Condition

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

P1138 ISUZU Possible Causes

  • Leaking injector or regulator
  • Engine ignition misfire
  • Engine mechanical condition
  • Faulty HO2S
  • HO2S Sensor 2 harness is open or shorted
  • HO2S Sensor 2 circuit poor electrical connection

How is the P1138 ISUZU code repair?

Start by checking 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.

What is the cost to diagnose the P1138 ISUZU code

Labor: 1.0

The cost to diagnose the P1138 ISUZU 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.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

Possible Symptoms

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

P1138 ISUZU Meaning

HO2S 2 Voltage Stays High Rich Condition is the generic description for the P1138 Isuzu code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1138 Isuzu OBDII code.

Still have questions? Please post your question on our Comments Section of the main page for more information.

More Information

Need more information on how to fix the P1138 ISUZU code?
Get Access to Factory Service Manuals

Need more help?

Get the P1138 Isuzu code diagnosed by a professional: Find a repair shop in your area