P28BA

Cylinder 11 Ion Current Sense Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Uneven engine operation
Reduced engine power
Increased fuel consumption
Possible vibrations at idle

Causes

Open or short circuit in the ion current circuit
Malfunction of the ion current sensor of cylinder 11
Problems with contacts in connectors
Engine control unit malfunction
Mechanical problems in cylinder 11

How to Fix

Check the integrity of the ion current circuit wiring
Check connections and contacts in connectors
Test the ion current sensor of cylinder 11
Check the operation of the engine control unit
If necessary, replace faulty components

Related codes

P28BB P28BC P28BD