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

- Code Popularity: 14,160 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1138 Audi?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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
⚠ Does your Audi have Safety Recalls? → Check here

How to Fix the DTC P1138 Audi?

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.

Code Tech Notes

2002 Volkswagen Passat





User Submitted Video

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1138 Audi 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 P1138 Audi Description

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 about the P1138 Audi OBDII code.

Still have questions? Please post your question on our Comments Section below for more information.

OBDII Code P1138 Audi - Long Term Fuel Trim Add. Fuel B2 System Too Lean - AutoCodes.com
P1138 Audi Code - Long Term Fuel Trim Add. Fuel B2 System Too Lean

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Code P1138 Audi comments

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