P020D

Cylinder 4 Injection Timing

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Unstable engine operation
Dips during acceleration
Increased fuel consumption
Check Engine Light Illuminates
Misfire in cylinder 4

Causes

Malfunction of the fuel injector of cylinder 4
Problems with the injector wiring harness
Poor contact in the injector connector
Engine control unit malfunction
Mechanical damage to the injector

How to Fix

Check the condition of the wiring harness and injector connector
Measure the injector resistance
Check the control signal from the ECU
Clean or replace the nozzle if necessary
Reset error and test drive

Related codes

P0201 P0202 P0203 P0204 P0304