P02B1
Cylinder 6 - Injector Leaking
What it means
P02B1 means Cylinder 6 - Injector Leaking.
Where it lives
For P02B1, the description names the injector as the part involved. The description of P02B1 puts it on cylinder 6.
Check these first
- Cylinder 6 injector stuck open and dribbling fuel
- Worn pintle or seat inside the cylinder 6 injector
- Excess fuel pressure forcing the cylinder 6 injector to leak
- Damaged O-ring or seal on the cylinder 6 injector
- Grounded pulse holding the cylinder 6 injector open
What to do next
- Pull the rail and pressure-test the cylinder 6 injector for drip
- Check fuel pressure and regulator operation
- Inspect the cylinder 6 injector O-ring and seat
- Compare cylinder 6 injector resistance and pulse to the others
- Replace the cylinder 6 injector if it will not hold pressure
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.