Engine-CodesGeneric – P02E8

P02E8 Code - Diesel Intake Air Flow Position Sensor Circuit Low

Quick Answer

The P02E8 diagnostic trouble code (DTC) indicates a problem with the Diesel Intake Air Flow Position Sensor Circuit being too low. Common causes include Faulty Diesel Intake Air Flow Position Sensor, Wiring or connector issues in the sensor circuit, Dirty or clogged air filter. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P02E8 indicates Diesel Intake Air Flow Position Sensor Circuit Low.
Common causes
Common causes include Faulty Diesel Intake Air Flow Position Sensor, Wiring or connector issues in the sensor circuit, Dirty or clogged air filter.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P02E8 Description

The P02E8 diagnostic trouble code (DTC) indicates a problem with the Diesel Intake Air Flow Position Sensor Circuit being too low. This sensor is responsible for measuring the amount of air entering the engine, which is crucial for the proper operation of a diesel engine. When the sensor detects a low signal, it can lead to incorrect air-fuel mixture ratios, impacting the engine's performance and emissions.

OBDII Code P02E8 - Diesel Intake Air Flow Position Sensor Circuit Low
P02E8 Code - Diesel Intake Air Flow Position Sensor Circuit Low

Common Causes of P02E8

  1. Faulty Diesel Intake Air Flow Position Sensor
  2. Wiring or connector issues in the sensor circuit
  3. Dirty or clogged air filter
  4. Intake air leaks
  5. ECM software or hardware issues

Symptoms of P02E8

  1. Reduced engine power
  2. Poor acceleration
  3. Rough idling
  4. Decreased fuel efficiency
  5. Illuminated Check Engine Light

How to Fix P02E8

  1. Perform a visual inspection of the intake air flow sensor and its wiring for any signs of damage or corrosion.
  2. Test the sensor using a multimeter to determine if it is functioning within specifications.
  3. Clean or replace the air filter if it is dirty or clogged.
  4. Inspect the intake system for any leaks or obstructions.
  5. Reset the ECM and clear the DTC to see if the issue recurs.

Cost to Fix P02E8

The cost of repairing a Diesel Intake Air Flow Position Sensor Circuit Low issue can vary depending on the specific vehicle make and model, as well as the labor rates in your area. In general, the parts for this repair can range from $50 to $200, while the labor costs can add another $100 to $200. Overall, you can expect a total repair cost of around $150 to $400. It's recommended to consult with a qualified mechanic to get an accurate estimate for your particular vehicle. Keep in mind that diagnostic time and labor rates can influence the final cost.

Tech Notes for P02E8





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Code P02E8 Information for Specific Makes

  • P02E8 Chevrolet — Diesel Intake Air Flow Position Sensor Circuit Low
  • P02E8 Dodge — Diesel Intake Air Flow Position Sensor Circuit Low
  • P02E8 Ford — Diesel Intake Air Flow Position Sensor Circuit Low
  • P02E8 GMC — Diesel Intake Air Flow Position Sensor Circuit Low
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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