Inspect Spark Plug - Kia Carnival 2009 General Information Manual

INSPECT SPARK PLUG

1. Inspect the electrodes(A) an ceramic insulator(B).
INSPECTION OF ELECTRODES
Condition
Description
2. Check the electrode gap (A).
Standard : 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)
Dark deposits
- Fuel mixture too rich
- Low air intake
White deposits
- Fuel mixture too lean
- Advanced ignition timing
- Insufficient plug tightening torque