P02E1

Diesel Intake Air Flow A Control Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Unstable idling
Black smoke from the exhaust pipe

Causes

Air filter clogged
Malfunction of the mass air flow sensor (MAF)
Airflow control solenoid valve problems
Open or shorted wiring harness
Malfunction of the engine control unit (ECU)

How to Fix

Check and replace the air filter
Diagnose the air flow sensor and, if necessary, replace it
Check the operation of the solenoid valve
Check the integrity of the wiring harness
Reset error and test drive

Related codes

P0101 P0102 P0103 P0113