Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

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Link: lemon-manuals.la

Ignition Timing: Adjustments

PROCEDURE
Base Ignition Timing IS NOT Adjustable. Do not attempt to adjust by turning distributor. Ignition timing and spark advance are controlled by PCM.

If a timing problem is suspected, SEE Computers and Control Systems/Testing and Inspection/Procedures.

DIAGNOSTIC NOTE:
The distributor must be indexed correctly for determining fuel synchronization.