P21D5

Cylinder 7 Injector B Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

The engine runs rough
Power Loss
Increased fuel consumption
Misfire in cylinder 7
Check Engine Light Is On

Causes

Open or short circuit in the injector circuit
Cylinder 7 injector malfunction
Connector problems or contact corrosion
Engine control unit malfunction
Wiring harness damage

How to Fix

Check the resistance of the injector of cylinder 7
Inspect connectors and wires for damage
Check the voltage in the injector control circuit
If necessary, replace the injector
Check the operation of the engine control unit

Related codes

P21D4 P21D6 P0207