P21F0

Cylinder 11 Injector B Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Power dips
Increased fuel consumption
Check Engine Light Is On
Possible misfires

Causes

Cylinder 11 injector malfunction
Open or short circuit in the injector control circuit
Poor contact in the injector connector
Problems with the engine control unit
Corroded or damaged wiring

How to Fix

Check the resistance of the injector of cylinder 11
Inspect wiring and connectors for damage
Check the voltage in the injector circuit
If necessary, replace the injector
Check the performance of the ECU

Related codes

P21F1 P21F2 P21F3