1995 Mazda MX-5 Miata Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing

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

IDLE SPEED SPECIFICATIONS

Application Man. Trans. RPM (1) Auto. Trans. RPM
Miata (2) 850 800
(1) Place automatic transmission in Park.
(2) Connect jumper wire between terminals TEN and GRD of data link connector.
IGNITION TIMING SPECIFICATIONS(Degrees BTDC @ RPM)

Application Man. Trans. (1) Auto. Trans.
Miata (2) 10 @ 850 10 @ 800
(1) Place automatic transmission in Park.
(2) Connect jumper wire between terminals TEN and GRD of data link connector.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

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

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