P02DD

Cylinder 9 Fuel Injector A Offset Learning At Max Limit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine idling
Dips during acceleration
Increased fuel consumption
Possible misfire in cylinder 9

Causes

Dirty or worn injector of cylinder 9
Problems with the fuel system (low/high pressure)
Faulty injector wiring
Mechanical engine problems (compression, timing)
Engine ECU malfunction

How to Fix

Diagnostics of the injector condition (resistance check, bench test)
Cleaning or replacing a faulty injector
Checking the fuel system pressure
Diagnostics of injector wiring
Checking compression in the cylinder
Resetting adaptations and relearning injectors

Related codes

P0209 P0309 P0172 P0175