Cylinder 6 Pressure Too Low

Check these first

• A leaking compression ring on cylinder 6
• A burnt or poorly sealing exhaust valve on cylinder 6
• A failed cylinder 6 pressure sensor reading low
• An intake or exhaust leak at cylinder 6
• Tight valve lash on cylinder 6

What to do next

1. Run a compression test on cylinder 6 and compare to the rest
2. Run a cylinder leakdown test on cylinder 6
3. Compare the cylinder 6 pressure sensor to a known good one
4. Check valve lash on cylinder 6
5. Repair the valve or ring fault if the mechanical test confirms it
6. Clear the code and retest

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