P02EC

Diesel Intake Air Flow A Control System - High Air Flow Detected

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–222 (est.)

Symptoms

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

Causes

Air leak in the intake tract
EGR valve stuck open
Malfunction of the mass air flow sensor (MAF)
Turbocharger problems
Contamination or damage to the intake system
Malfunction of the manifold absolute pressure (MAP) sensor

How to Fix

Visual inspection of the intake tract for leaks
Checking the operation of the EGR system
Turbocharger diagnostics
Checking the mass air flow sensor readings
Diagnostics of the absolute pressure (MAP) sensor
Checking the tightness of the intake system
Cleaning or replacing faulty components
Reset error codes and test drive

Related codes

P0100 P0101 P0102 P0103 P0299