Ignition Timing

Start and warm engine to normal operating temperature. Shut engine off.
On non-turbo models, connect timing light to spark plug wire on cylinder No. 1 (front cylinder at timing belt end of engine). Connect scan tester to data link connector No. 3. See Fig 1 and Fig 2. Scan tester is used to read engine RPM.
On turbo models, open cover located above the igniter. Connect timing light lead to Green wire and to battery. See Fig 4. Igniter is located near driver's side strut tower. Connect tachometer to proper terminals of data link connector No. 1 located in engine compartment. See Fig 1 and Fig 2.
On all models, apply parking brake. Place transmission in Neutral. Start engine and maintain engine at 2500 RPM for 90 seconds and then allow engine to idle. Ensure idle speed is 650-750 RPM on non-turbo models or 600-700 on turbo models.
Install Jumper Wire (SST 09843-18020) between terminals TE1 and E1 of data link connector No. 1 located in engine compartment. See Fig 3.
NOTE: Timing marks are located on front cover.
Ensure base timing is within specification at idle with transmission in Neutral, electric cooling fan off, A/C and all accessories off. See IGNITION TIMING table.
On non-turbo models, if base timing is not within specification, loosen distributor hold-down nut. Rotate distributor to obtain correct base timing. Tighten distributor hold-down nut.
On all models, remove jumper wire from data link connector No. 1. Ensure ECM controlled timing is within specification. See IGNITION TIMING table. Shut engine off. Remove jumper wire, tachometer or scan tester and timing light.