Cylinder 2 Ion Current Sense Circuit

Check these first

• A damaged ignition coil on cylinder 2 corrupting the ion sense signal
• Chafed cylinder 2 ion current sense wiring
• A dirty or loose cylinder 2 coil connector
• A poor ground at the ion sense module
• An ion sense module fault on the cylinder 2 channel

What to do next

1. Read cylinder 2 ion current data on a scan tool
2. Inspect the cylinder 2 coil and sense wiring for damage
3. Clean and reseat the cylinder 2 coil connector
4. Check the ion sense module ground
5. Replace the cylinder 2 coil or ion sense module if the signal stays bad
6. Clear the code and retest

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