P28B0

Cylinder 9 Ion Current Sense Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Illuminates
Possible misfires

Causes

Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Ion current sensor malfunction
Wiring Harness Problems
Engine control unit malfunction

How to Fix

Check the integrity of the sensor circuit
Inspect and clean connector contacts
Check sensor resistance
Scan the control unit for other errors
If necessary, replace the ion current sensor

Related codes

P28A0 P28B1 P28B2