P28AD

Cylinder 8 Ion Current Sense Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Misfire in cylinder 8
Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Illuminates

Causes

Open or short circuit in the ion current circuit
Ion current sensor malfunction
Problems with the 8th cylinder ignition coil
Spark plug fault
Problems with the engine control unit (ECU)

How to Fix

Check the integrity of the ion current circuit
Check the condition of the spark plug and coil
Test the ion current sensor
Check connections and connectors
If necessary, replace faulty components

Related codes

P28AC P28AE P28AF