Fuel System Synchronization
NOTE:
Fuel system synchronization is controlled by position of the distributor. Rotating distributor WILL NOT change ignition timing, but will change fuel system synchronization. Fuel system synchronization should be checked anytime distributor is removed or rotated.
- Connect scan tool to Data Link Connector (DLC), located below driver's side of instrument panel, near steering column. Select SET SYNC from scan tool menu. Start engine and go to next step.
- If scan tool displays IN RANGE along with 0°, this indicates correct distributor location. The degree reading displayed on scan tool indicates the fuel synchronization, not ignition timing.
- If scan tool display is correct, turn engine off. Remove scan tool. If scan tool does not display IN RANGE along with 0°, go to next step.
- If scan tool displays a plus (+) or minus (-) sign next to the degree number, and/or the degree number displayed is not zero, loosen but DO NOT remove distributor hold-down bolt.
- Rotate distributor until scan tool displays IN RANGE. Continue to rotate distributor until a reading as close as possible to 0° is obtained. Tighten distributor hold-down bolt to 16.7 ft. lbs. (22.5 N.m). Shut engine off. Remove scan tool.