Engine-Codes - Bmw - P1174 BMW

P1174 BMW - Fuel Trim Adaptation Additve Bank 1 Malfunction

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

P1174 BMW Possible Causes

  • Intake leak
  • Faulty Oxygen Sensor
  • Faulty Mass Air Flow (MAF) Sensor

How is the P1174 BMW 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 P1174 BMW code

Labor: 1.0

The cost to diagnose the P1174 BMW 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.
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Possible Symptoms

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

P1174 BMW Meaning

P1175 is a condition where there is a lean fuel trim or more air than fuel ratio, what determines the lean fuel condition is the 02 sensor, this is more of a condition where the 02 has detected more air and the engine management cannot adapt. Check for vacuum leaks especially at the Mass Air Flow (MAF) Sensor air duct boot.

More Information

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