P21E9

Cylinder 7 Injector B Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

The engine hesitates or runs rough
Loss of engine power
Increased fuel consumption
Check Engine Light Is On
Possible misfires

Causes

Cylinder 7 injector malfunction
Open or short circuit in the injector control circuit
Problems with the injector connector
Engine control module (ECU) defective
Corroded contacts or damaged wiring harness

How to Fix

Visual inspection of the injector control circuit
Checking the resistance of the injector of cylinder 7
Diagnostics of voltage in the control circuit
Replacing a faulty injector if necessary
Repair or replacement of damaged electrical wiring

Related codes

P21EA P0207 P0263