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Idle Speed & Ignition Timing

Connect scan tool to DLC-2. Ensure idle speed and base ignition timing are set to specification. See IDLE SPEED SPECIFICATIONS  and IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM)  tables. If adjustment is necessary, see ON-VEHICLE ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS

Application Man. Trans. RPM (1) Auto. Trans. RPM
B2300 (2) 800-950
B2500 760-830 760-820
B3000 760-800 880-920
B4000 760-800 760-830
Miata (3) 750-850 750-850
Millenia (2) 600-700
MPV (3) (2) 700-800
Protege (3) 650-750 650-750
Tribute
2.0L 800-900 (2)
3.0L (2) 730-750
626
2.0L 550-850 500-800
2.5L 550-750 550-750
(1) Place automatic transmission in Park.
(2) Information is not available from manufacturer.
(3) Connect a jumper wire between terminals TEN and GND at data link connector. See Figure.
IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM)

Application Man. Trans. (1) Auto. Trans.
B2300, B2500 & B3000 10 @ Idle 10 @ Idle
B4000 (2) (2)
Miata 9-11@ 800 9-11@ 800
Millenia (3)
2.3L (2) 6-8 @ 550-750
2.5L (2) 9-11 @ 550-750
MPV (3) (2) 4-16 @ 700-800
Protege (3) 6-18 @ 650-750 6-18 @ 650-750
Tribute 8-12 @ idle 8-12 @ idle
626
2.0L 6-18 @ 550-850 6-18 @ 500-800
2.5L 4-16 @ 550-750 4-16 @ 550-750
(1) Place automatic transmission in Park.
(2) Information is not available from manufacturer.
(3) Connect a jumper wire between terminals TEN and GND of data link connector. See Figure.
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