Ignition Timing Adjustment

All except computer controlled eng., disconnect and plug distributor vacuum hose.

6.0L (368) FI eng disconnect pink/black wire with connector from tan/black wire by distributor.

1.8L (112) 2V: disconnect 4-wire connector at distributor.

4.1L (250): disconnect green reference signal connector.

If "Check Engine" light comes on during this procedure, remove ECM fuse to clear.