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Idle Speed & Ignition Timing

Ensure idle speed and base ignition timing are set to specification. See IDLE SPEED SPECIFICATIONS and IGNITION TIMING SPECIFICATIONS  tables. If adjustment is necessary, see ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS

Application Man. Trans. RPM (1) Auto. Trans. RPM
B2500 (2) (2)
B3000 825-875 875-925
B4000 800-850 725-775
Millenia N/A 600-700
MPV N/A 760-800
Protege (3)
1.5L 650-750 700-800
1.8L 700-800 700-800
626
2.0L 550-850 500-800
2.5L 550-750 550-750
(1) Place automatic transmission in Park.
(2) Information not available.
(3) Connect a jumper wire between terminals TEN and GND at data link connector. See Figure .
IGNITION TIMING SPECIFICATIONS

Application Man. Trans. Degrees BTDC @ RPM (1) Auto. Trans. Degrees BTDC @ RPM
B2500 & B3000 8-10 @ Idle 8-10 @ Idle
B4000 8-10 @ Idle 8-10 @ Idle
Millenia (2)
2.3L N/A 6-8 @ 650
2.5L N/A 9-11 @ 650
MPV N/A 10-12 @ 500-900
626
2.0L 6-18 @ 550-850 6-18 @ 500-800
2.5L 4-16 @ 550-750 4-16 @ 550-750
Protege (2)
1.5L 9-11 @ 700 9-11 @ 750
1.8L -1-1 @ 750 -1-1 @ 750
(1) Place automatic transmission in Park.
(2) Connect a jumper wire between terminals TEN and GND of data link connector. See Figure .
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