Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Saab >> 1993 >> 900 Commemorative >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Ignition System >> Ignition Timing Control System >> 9000 Series Turbo

9000 Series Turbo

The ECM controls ignition timing. Inputs from various sensors are processed to calculate ignition advance. If the ECM senses knocking, it can retard timing on individual cylinders. Adjustment of engine timing is not possible on this system.

scientia non olet · About Mike's Workshop Manuals