MR2-Check

Decipher check-engine flashes

Only for iPhone

$1.99 · Designed for iPhone

iPhone

Welcome to MR2 Check, an app that deciphers engine fault codes for the 1991 MR2, engines 3S-GTE, 3S-GE, and 5S-FE. MR2 owners know diagnosing their vehicle requires setting a jumper pin and interpreting flashes on the instrument panel's check-engine light. This app, MR2 Check, makes looking up the code no further than your iPhone. Select your engine, enter the code or codes (space separated), and press "LOOK UP." Enter the code 100 to see descriptions of all codes for the selected engine. You can also enter the code by pressing the "BLINK" button while matching the blink pattern on the check-engine light. This takes a little practice to get the timing right, and it helps to record two cycles for better accuracy. Learn more at https://www.ytechnology.com/2023/12/mr2-check-engine.html

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The developer, Michael Yam, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    • Seller
      • Michael Yam
    • Size
      • 1.4 MB
    • Category
      • Utilities
    • Compatibility
      Requires iOS 15.2 or later.
      • iPhone
        Requires iOS 15.2 or later.
      • iPod touch
        Requires iOS 15.2 or later.
      • Mac
        Requires macOS 12.1 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2025 YTechnology LLC