Cylinder 1 Injection Timing Performance - Over Retarded

Check these first

• A restricted or clogged injector on cylinder 1
• A weak injector spray on cylinder 1
• Air in the fuel rail at cylinder 1
• Incorrect injector timing from a wrong calibration
• A worn injector on cylinder 1

What to do next

1. Compare cylinder 1 injection timing on a scan tool
2. Check the injector balance on cylinder 1
3. Inspect the cylinder 1 injector connector and wiring
4. Test cylinder 1 compression and misfire counters
5. Replace the cylinder 1 injector if timing stays retarded
6. Clear the code and retest

Look up another code