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Duty Cycle - Measure Point

Discussion in 'Mondial' started by aleib, Jan 25, 2023.

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  1. aleib

    aleib Karting

    Oct 12, 2022
    141
    Full Name:
    Alejandro Leib
    #1 aleib, Jan 25, 2023
    Ok good, now all is ok and running very fine (I did a lot of things like AAV, WUR and FD rebuilds, spark plug wires, fuel pump, fuel filter, and a very very long list of replacements), but this is just a "by ear" setup...

    I would really like to have an empirical confirmation is all doing fine.

    Where should I measure Duty Cycle to the FV ? at the FV itself? at the ECU? at the diagnosis port in front of the engine? near the ECU? where?

    Thanks for your response, and if its not clear, please send me a picture :)
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,100
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #2 Rifledriver, Jan 25, 2023
    At the FV.
     
    aleib likes this.
  3. aleib

    aleib Karting

    Oct 12, 2022
    141
    Full Name:
    Alejandro Leib
    #3 aleib, Jan 25, 2023
    good thanks, I will try to aim to have a 50-55% at warm with O2 connected, then will repost with results :)

    BTW: the procedure of turn mix screw CCW until stops, then CW until start fuel start at one port, and then half turn back, is extremelly simple and accureated to get the car running from no reference.
     
  4. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,100
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #4 Rifledriver, Jan 25, 2023
    As a reality test to be sure you are well and correctly connected when warmed up and O2 disconnected it should read steady 50%. If not there is an issue either with car or meter.
     
  5. aleib

    aleib Karting

    Oct 12, 2022
    141
    Full Name:
    Alejandro Leib
    #5 aleib, Jan 25, 2023
    Ok, where should de o2 be disconnected? On the ecu ?
     
  6. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,100
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #6 Rifledriver, Jan 25, 2023
    Where the sensor plugs into harness.
     
  7. aleib

    aleib Karting

    Oct 12, 2022
    141
    Full Name:
    Alejandro Leib
    #7 aleib, Jan 25, 2023
    Thats on the truck or the engine bay? Or it's car specific ? Could not find it yet...
     

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