P01D9

Cylinder 8 Injection Timing Performance - Over Retarded

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Misfire in cylinder 8
Reduced engine power
Increased fuel consumption
Unstable idle

Causes

Malfunction of the fuel injector of cylinder 8
Problems with the fuel pump or pressure regulator
Contaminated or damaged fuel lines
Malfunction of sensors (mass air flow sensor, camshaft position sensor, crankshaft position sensor)
Problems with the wiring harness or injector contacts

How to Fix

Check the condition of the fuel injector of cylinder 8
Check the fuel pressure in the system
Check the condition of the sensors and their wiring
Clean or replace fuel lines if necessary
Check and update ECU software

Related codes

P01D8 P0208 P0308