P21ED

Cylinder 9 Injector B Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Power Loss
Misfire in cylinder 9
Check Engine Light Is On

Causes

Broken or damaged wires in the injector control circuit
Poor contact in the injector connector
Malfunction of the injector itself
Problems with the engine control unit
Short circuit in control circuit

How to Fix

Check the integrity of the wires in the injector control circuit
Inspect and clean the injector connector contacts
Check the injector resistance with a multimeter
If necessary, replace the injector
Check the operation of the engine control unit

Related codes

P21EE P0209 P0269