P28A0

Cylinder 5 Ion Current Sense Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Check Engine Light Illuminates
Reduced engine power
Misfire in cylinder 5

Causes

Open or short circuit in the ion current circuit
Ion current sensor malfunction
Problems with connectors or wiring harness
Engine control unit malfunction
Damage to wire insulation

How to Fix

Check the integrity of the ion current circuit
Inspect connectors and wiring harness for damage
Check the resistance of the ion current sensor
If necessary, replace the ion current sensor
Check and reflash the engine control unit

Related codes

P28A1 P28A2 P28A3