How does the ECU know what gear the car is in on a manual car? | FerrariChat
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How does the ECU know what gear the car is in on a manual car?

Discussion in '348/355' started by kenneyd, May 21, 2015.

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  1. kenneyd

    kenneyd Formula 3

    Sep 30, 2014
    2,017
    NE FL
    Full Name:
    Ken
    #1 kenneyd, May 21, 2015
    I was reading in my owners manual about the bypass valve operation in gears 1,3,4,5,6 opens at 2800rpm and in 2nd at 4000rpm.... but as far as i can tell, at least using the ricamb parts diagrams and downloaded work shop manuals, there is no sensor to tell the ECU what gear the car is in. Again im referring to the operation of a manual trans car.

    Anyone know?
     
  2. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,549
    San Carlos, CA
    Full Name:
    Mitchell Le
    #2 yelcab, May 21, 2015
    It knows what speed you are.
    It knows what RPM the engine is in.
    It can figure out what gear you are in.
     
  3. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    #3 andrew911, May 22, 2015
    Actually I think it's 3rd gear where the valve can only open at 4000 RPM+...
     
  4. kenneyd

    kenneyd Formula 3

    Sep 30, 2014
    2,017
    NE FL
    Full Name:
    Ken
    #4 kenneyd, May 22, 2015
    Roger, thanks
     

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