P21EB

Cylinder 8 Injector B Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Misfire in cylinder 8
Increased fuel consumption
Rough idling
Check Engine Light Illuminates
Reduced engine power

Causes

Cylinder 8 injector malfunction
Short circuit in injector control circuit
Wiring harness damage
Problems with the engine control unit (ECU)
Corroded contacts or poor connection

How to Fix

Check the resistance of the injector of cylinder 8
Inspect the wiring harness for damage
Check the voltage in the injector control circuit
Clean contacts and check connections
If necessary, replace the nozzle or repair the wiring

Related codes

P21EA P21EC P0208