Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

Detriot s60 boost and map sensor

Discussion in 'Ask An Owner Operator' started by Guf, Apr 7, 2019.

Page 1 of 4
  1. Apr 7, 2019 #1
    Guf

    Guf Light Load Member

    61
    51
    Apr 5, 2019
    0
    Hey folks, first post long time follower.
    Have a few questions for the gurus.
    installed a scanguage d and it only reads 32psi max, Truck is tuned about 625hp s60 12.7 ddec 4 99. Should be seeing 35 to 40 estimate. Will the map sensor limit boost and fuel if it only sees 32 on the map sensor? The stock map sensor is a 2bar how can I install a 3 bar sensor? Maybe I'm wrong, Since the scan guage reads off the ecm will this affect the fuel vs boost and what the engine needs?
    I dont have a mechanical guage installed but will be ordering one shortly to see actual boost readings. I know on my diesel bmw and ecu tuning that is not an issue since they installed 3 bar map sensors. Any insight would help!
    Thanks in advance

    Mods
    Full tilt mani
    Straight pipes
    Borg 1702
    Tuned dr diesel in effingham IL
     
    Guf, Apr 7, 2019
    Guf, Apr 7, 2019
    #1
    jamespmack Thanks this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Apr 7, 2019 #2
    blairandgretchen

    blairandgretchen Road Train Member

    12,046
    60,630
    Dec 9, 2011
    South west Missouri
    0
    95 S60

    Mine reads 30 on the Scan Guage and 36-39 on manual factory guage.

    DCS Fernando hipped me to this point you mentioned. He repaired the board and tuned.

    I'm running BW 1702 and Full tilt now.
     
    blairandgretchen, Apr 7, 2019
    blairandgretchen, Apr 7, 2019
    #2
    jamespmack Thanks this.
  4. Apr 7, 2019 #3
    Liquidforce

    Liquidforce Light Load Member

    273
    285
    Sep 27, 2016
    Savannah GA
    0
    2 bar is 29.7 psi. I’d be installing a 3 bar sensor, that should theoretically read up to 44psi. They are cheap enough.
     
    Liquidforce, Apr 7, 2019
    Liquidforce, Apr 7, 2019
    #3
    jamespmack and blairandgretchen Thank this.
  5. Apr 7, 2019 #4
    dougjames8679

    dougjames8679 Bobtail Member

    11
    7
    Apr 26, 2011
    new york, ny
    0
    A DD expert explained to me that EMC reads a max of 32 pounds of boost even though my gauge reads 38. Get a boost gauge and hammer down.
     
    dougjames8679, Apr 7, 2019
    dougjames8679, Apr 7, 2019
    #4
    jamespmack, Old Man and Guf Thank this.
  7. Apr 7, 2019 #5
    blairandgretchen

    blairandgretchen Road Train Member

    12,046
    60,630
    Dec 9, 2011
    South west Missouri
    0
    Son?
     
    blairandgretchen, Apr 7, 2019
    blairandgretchen, Apr 7, 2019
    #5
    jamespmack Thanks this.
  8. Apr 7, 2019 #6
    blairandgretchen

    blairandgretchen Road Train Member

    12,046
    60,630
    Dec 9, 2011
    South west Missouri
    0
    So - what's cool for a pyro reading? I'm seeing 700-900 on an ISSPRO.
     
    blairandgretchen, Apr 7, 2019
    blairandgretchen, Apr 7, 2019
    #6
    jamespmack Thanks this.
  9. Apr 7, 2019 #7
    benjamin260_6

    benjamin260_6 Medium Load Member

    426
    474
    Aug 8, 2012
    Ontario, Canada
    0
    The ecm only shows 31.88# boost on a DDEC 4...some displays will round up to 32 or down to 31.5. The sensor is still reading after this. The CEL will usually turn on from high boost at around 43# boost depending on who tuned it.
     
    benjamin260_6, Apr 7, 2019
    benjamin260_6, Apr 7, 2019
    #7
  10. Apr 7, 2019 #8
    swaan

    swaan Road Train Member

    2,943
    4,371
    Jul 12, 2009
    BC canada
    0
    700-900 is perfect. Hammer down.

    As far as boost goes just put a manual gauge in. The ecm only goes to 31 psi on my Detroit. Manual guage goes to 48psi. :)
     
    swaan, Apr 7, 2019
    swaan, Apr 7, 2019
    #8
    Guf, Ruthless and blairandgretchen Thank this.
  11. Apr 7, 2019 #9
    Guf

    Guf Light Load Member

    61
    51
    Apr 5, 2019
    0
    If the ecm only sees 32psi how is it adding more fuel to more boost? What controls the boost? Fuel? How does it know it needs more fuel for boost of 40 psi?

    On my bmw diesel there is a maf and a map sensor so it reads off of those 2 sensors and adds fuel timing according to sensor data.
     
    Last edited: Apr 7, 2019
    Guf, Apr 7, 2019
    Guf, Apr 7, 2019
    #9
    jamespmack and blairandgretchen Thank this.
  12. Apr 7, 2019 #10
    Guf

    Guf Light Load Member

    61
    51
    Apr 5, 2019
    0
    Can you add any 3 bar map or it has to be specific? Also if a 3 bar map is installed will the ecm read more boost?
     
    Guf, Apr 7, 2019
    Guf, Apr 7, 2019
    #10
    jamespmack Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 1 of 4