METRO XFi (WITH ESC)

Start and warm engine to normal operating temperature. Ensure idle speed is within specification. See IGNITION TIMING SPECIFICATIONS table. If idle speed requires adjustment, see IDLE SPEED under IDLE SPEED & MIXTURE. Turn engine and all accessories off. Attach timing light to No. 1 spark plug wire.
Remove cap from diagnostic connector, located in rear corner of engine compartment, near left strut tower. Connect a jumper wire between terminals "C" (Black wire) and "D" (Violet/Green wire) of diagnostic connector. See Fig 1 .

Fig 1: Diagnostic Connector Terminal ID (Metro XFi)
Courtesy of GENERAL MOTORS CORP.
Start engine and check timing mark alignment on crankshaft pulley with timing marks on timing belt cover. Ignition timing must be within specification. See IGNITION TIMING SPECIFICATIONS table.
If ignition timing is not within specification, loosen distributor hold-down flange bolts and rotate distributor to obtain correct ignition timing. Tighten distributor hold-down flange bolts to 10 ft. lbs. (13 N.m). Recheck ignition timing.
Turn engine off. Remove jumper wire and install cap on diagnostic connector. Remove timing light.

IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM) ⁽¹⁾

Application

Man. Trans.

Auto. Trans.

Metro XFi (w/ESC)

⁽²⁾ 5@750

N/A

Metro & Metro LSi (w/o ESC)

w/o Vacuum

6 @ 800

6 @ 850

w/Vacuum

12-13 @ 800

12-13 @ 850

⁽¹⁾	If specification differs from emission label, use specification listed on emission label.

⁽²⁾	Specification listed with jumper wire installed between terminals "C" (Black wire) and "D" (Violet/Green wire) of diagnostic connector, located engine compartment, near strut tower.