P21EA

Cylinder 8 Injector B Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Rough engine operation
Increased fuel consumption
Reduced engine power
Check Engine light comes on
The engine may go into emergency mode

Causes

Cylinder 8 injector malfunction
Open or short circuit in the injector control circuit
Poor contact in the injector connector
Engine control unit malfunction
Wiring Harness Problems

How to Fix

Check the resistance of the injector of cylinder 8
Inspect the injector control circuit for damage.
Check the contacts in the injector connector
If necessary, replace the injector
Check the operation of the engine control unit

Related codes

P21E9 P21EB P21EC