Tune-Up Notes
NOTE:
When performing tune-up procedures described in this article, the following notes and precautions must be followed.
Due to late changes and corrections, always refer to Emission Control Label in engine compartment before attempting tune-up. If manual and label differ, always use label specifications.
EPA High Altitude emission standards apply to vehicles sold in certain areas outside California which have an elevation above 4,000 feet.
When performing tune-up on vehicles equipped with catalytic converter, do not allow or create an engine misfire in one or more cylinders for an extended period of time. Damage to converter may occur due to loading converter with unburned fuel.