P28BC

Cylinder 12 Ion Current Sense Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Misfire in cylinder 12
Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Illuminates

Causes

Open or short circuit in the circuit
Faulty spark plug
Problems with the ignition coil
Wiring harness damage
Engine control unit malfunction

How to Fix

Check the integrity of the ion current circuit
Inspect the spark plug and coil
Check connections and connectors
Test circuit resistance
Replace damaged components if necessary

Related codes

P28BB P28BD P28BE