Spark Plug Usage

^ Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability conditions. Refer to Evaporative Emission (EVAP) Control System Description for the correct spark plug.
^ Ensure that the spark plug has the correct heat range. An incorrect heat range causes the following conditions:
- Spark plug fouling-colder plug
- Pre-ignition causing spark plug and/or engine damage-hotter plug