P02A5

Cylinder 3 - Injector Leaking

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine idling
Power reduction
Increased fuel consumption
Misfire in cylinder 3
Smell of fuel from the exhaust system

Causes

Worn injector o-rings
Mechanical damage to the injector
Nozzle contamination or coking
Injector control circuit malfunction
Fuel pressure problems

How to Fix

Diagnostics of an injector on a stand for leak testing
Replacing injector O-rings
Clean or replace the nozzle if necessary
Checking the injector control electrical circuit
Checking the fuel pressure in the system
Resetting the error and checking engine operation after repair

Related codes

P0203 P0303 P0172