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Home >> Mazda >> 2021 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System >> Engine Tune-Up >> Idle-up Speed Control Inspection
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Idle-up Speed Control Inspection

NOTE:
  • The idle speed cannot be adjusted.
  • The M-MDS is required to verify the idle speed.
  1. Prepare for the engine tune-up. (See ENGINE TUNE-UP PREPARATION .)
  2. Verify that the idle speed according to each load (M-MDS PID: RPM) is within the specification using the PID/data monitor function of the M-MDS (except idle speed decrease after applying load). (See PCM INSPECTION .)
    • If the engine speed is not within the specification when a specified load is applied, inspect the related input parts, wiring harnesses, and connectors.

    Idle-up speed [Convertible top] (MT: Neutral position, AT: P position or N position) 

    MT (A/C on): 720-870 RPM

    AT (A/C on): 700-800 RPM

    MT (Electrical loads on): 680-780 RPM

    AT (Electrical loads on): 690-790 RPM

    Idle-up speed [Retractable hardtop] (MT: Neutral position, AT: P position or N position) 

    MT (A/C on): 720-870 RPM

    AT (A/C on): 720-820 RPM

    MT (Electrical loads on): 700-800 RPM

    AT (Electrical loads on): 720-820 RPM

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