Engine-Codes - Audi - P1138 AUDI

P1138 AUDI - Long Term Fuel Trim Add. Fuel B2 System Too Lean

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

P1138 AUDI Possible Causes

  • Intake air leak
  • Faulty O2 Sensor
  • Faulty Mass Air Flow (MAF) Sensor
  • O2 Sensor harness is open or shorted
  • O2 Sensor circuit poor electrical connection

How is the P1138 AUDI 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.

Tech Notes

2002 Volkswagen Passat





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What is the cost to diagnose the P1138 AUDI code

Labor: 1.0

The cost to diagnose the P1138 AUDI 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.

Possible Symptoms

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

P1138 AUDI Meaning

Long Term Fuel Trim Add. Fuel B2 System Too Lean is the generic description for the P1138 Audi code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1138 Audi OBDII code.

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More Information

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