Showing specs for all NA & NB Miatas

Engine idle speed (NB2 and Mazdaspeed)

750–850 rpm (800 ± 50 rpm)750–850 rpm (800 ± 50 rpm)

Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Warm engine to normal operating temperature; fully charged battery. Start with MT in Neutral or AT in P, electrical loads off, and cooling fan stopped. Read engine-speed RPM PID with factory-compatible diagnostic equipment. Use the complete factory Engine Tune-Up procedure for inspection setup. This record provides the inspection value.

Applies to
  • NB 2001–2005 (BP-Z3) — Other years inferred within NB2 non-turbo family from actual 2003/2005 factory evidence.
  • NB 2004–2005 (BP-Z3-TURBO) — Actual2005 factory evidence; 2004 inferred within MSM family.
  • Verified in: 2003 Mazda MX-5 Miata Workshop Manual (electronic manual capture); 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)

Sources (2)

View 2 source citations
  • 2003 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page Engine Tune-Up, Ignition Timing Inspection (PDF p. 567) · Printed value & notes
    Page Engine Tune-Up, Ignition Timing Inspection (PDF p. 567)
    Printed: “Specification 750—850 (800 ± 50) rpm”
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page Engine Tune-Up, Ignition Timing Inspection (PDF p. 649) · Printed value & notes
    Page Engine Tune-Up, Ignition Timing Inspection (PDF p. 649)
    Printed: “Specification 750—850 (800 ± 50) rpm”