P02E3

Diesel Intake Air Flow A Control Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Loss of engine power
Increased fuel consumption
Rough idling
Check Engine Light Illuminates

Causes

Open or short circuit in wiring harness
Air flow control solenoid valve malfunction
ECU software error
Oxidation of contacts in circuit connectors
Mechanical damage to the intake manifold flaps
Damper position sensor malfunction

How to Fix

Diagnose the control circuit using a multimeter
Check the resistance and functionality of the control solenoid
Inspect the condition of the wiring harness for damage
Clean or replace intake manifold flaps if necessary
Test sensors associated with the system
Update the ECU firmware if a software error is suspected

Related codes

P02E2 P0101 P0102