Can someone tell what this does? | FerrariChat

Can someone tell what this does?

Discussion in 'Technical Q&A' started by Mr Iceman, Apr 23, 2005.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. Mr Iceman

    Mr Iceman Karting

    Joined:
    Mar 3, 2004
    Messages:
    101
    Location:
    Canterbury, England
    Full Name:
    Scott
    Hi everyone

    I know this is probably a dumb question, but I was wondering what this cam thingy does, It looks as though it is in someway related to the coolant temperature but I was just curious as to its exact function?

    Cheers
    Scotty
    Image Unavailable, Please Login
     
    Last edited by a moderator: Sep 7, 2017
    Mr Iceman, Apr 23, 2005
    #1
  2. Birdman

    Birdman F1 Veteran

    Joined:
    Jun 20, 2003
    Messages:
    6,689
    Location:
    North shore, MA
    Full Name:
    THE Birdman
    That is your cold idle device. It moves the throttle based on the temperature of your coolant and increases your idle speed when the car is cold. The purpose is to reduce emissions at startup and wear your engine out prematurely.

    Mine is disconnected.

    Birdman
     
    Birdman, Apr 23, 2005
    #2
  3. ham308

    ham308 Formula Junior

    Joined:
    Nov 3, 2003
    Messages:
    358
    Location:
    NE Switzerland
    Full Name:
    Richard Ham
    There's an adjusting screw on it so it can be set to a reasonable fast idle (1500 rpm?) till the water gets hot. For some reason though the manual suggests it should go to 3000 rpm, which is hilarious....


    Richard
     
    ham308, Apr 23, 2005
    #3
  4. don_xvi

    don_xvi F1 Rookie

    Joined:
    Nov 1, 2003
    Messages:
    2,934
    Location:
    Outside Detroit
    Full Name:
    Don the 16th
    You've got to remember that they were doing a lot of silly things on these cars. The cat location isn't exactly beneficial to quick lightoff, so they obviously needed that high of an idle to get them lit and working on the EPA test.
    Kinda like the seat pressure-sensitive fuel pump cutout... NUTTY!
     
    don_xvi, Apr 24, 2005
    #4

Share This Page