P02EA

Diesel Intake Air Flow A Position Sensor Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Rough engine operation
Power reduction
Increased fuel consumption
Jerking during acceleration
Check Engine Light Is On

Causes

Air flow position sensor malfunction
Open or shorted wiring harness
Poor contact in the sensor connector
Oxidation of contacts
Power or grounding problems
Engine control unit (ECU) malfunction

How to Fix

Check the condition of the sensor and its connector
Check the integrity of the wiring harness
Clean connector contacts
Check the power supply and grounding of the sensor
Test the sensor (resistance, signal)
Replace sensor if necessary
Check/update ECU firmware

Related codes

P0101 P0102 P0103 P0299