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HOMESERVICE MANUALSMAZDA1998PROTEGE DX, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGIDLE SPEED & IGNITION TIMING
1998 Mazda Protege DX, Automatic

Idle Speed & Ignition Timing

1998 Mazda Protege DX, AutomaticSECTION 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 .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.