AutoCodesGeneric – P02E4

P02E4 Code - Diesel Intake Air Flow Control Stuck Open

Quick Answer

The Powertrain Control Module (PCM) monitors the volume air flow to the engine intake controlled by the Intake Air Flow Control Valve on the throttle body. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection. 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
P02E4 indicates Diesel Intake Air Flow Control Stuck Open.
Common causes
Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection.
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.
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Code Popularity 17,337
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 15, 2019
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Code P02E4 Description

The Powertrain Control Module (PCM) monitors the volume air flow to the engine intake controlled by the Intake Air Flow Control Valve on the throttle body. The PCM sets the OBDII code when the Intake Airflow Control Valve is out of factory specifications.
OBDII Code P02E4 - Diesel Intake Air Flow Control Stuck Open - AutoCodes.com
P02E4 Code - Diesel Intake Air Flow Control Stuck Open

What are the Possible Causes of the DTC P02E4?

  • Faulty Throttle Body Assembly
  • Throttle Body Assembly harness is open or shorted
  • Throttle Body Assembly circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P02E4?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P02E4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

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.

Frequently Asked Questions about P02E4 Code

No Frequently Asked Questions about P02E4 Code found.

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