Ignition Timing Advance Control

All models have ignition spark timing controlled by the EFC, MPFI or SPFI control unit. Ignition system controls ignition timing to a precise point by matching the vehicles operating conditions to pre-programmed timing advance and retard specifications.

These parameters are stored in the memory circuits of the control unit. The control unit compares the incoming voltage signals from monitoring sensors to these parameters and adjusts the timing and other output signals accordingly.