P28B6

Cylinder 10 Ion Current Sense Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Unstable engine operation
Reduced engine power
Increased fuel consumption
Misfire in cylinder 10

Causes

Open or short circuit in the ion current sensor circuit
Malfunction of the ion current sensor of the 10th cylinder
Poor contact in the sensor connector
Wiring harness damage
Engine control unit malfunction

How to Fix

Check the integrity of the ion current sensor circuit
Inspect connectors and contacts for oxidation or damage
Check the resistance of the ion current sensor
If necessary, replace the ion current sensor
Check the operation of the engine control unit

Related codes

P28B5 P28B7 P28B0