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2008 hpdi 300

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  • 2008 hpdi 300

    ok motor has all new pistons i have 105 to 110 psi have not broke the motor in yet im back to my original problem of will not idle in water runs perfect on the hose i have replaced
    bulb
    in boat filter
    fuel filter and water sep on the motor
    both lp pumps
    vst filter
    had injectors cleaned
    new plugs
    new crank battery
    im thinking computer but want to see what yall think before i spend 1500 on one

  • #2
    I have run yds and shows no problems
    Last edited by Skeeter21i300; 02-16-2020, 10:55 PM.

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    • #3
      1.Diagnosis
      Item Result Code
      Pulser coil Normal 13
      Crank position sensor Normal 14
      Water temp sensor Normal 15
      Throttle position sensor Normal 18
      Battery voltage Normal 19
      Atmospheric press sensor Normal 22
      Intake temp sensor Normal 23
      Fuel press sensor Normal 25
      Injector Normal 26
      Water in fuel No 27
      Shift position switch Normal 28
      Engine stop lanyard switch Off 44
      4.Engine Monitor
      Monitor Item (DATA) Result Unit Monitor Item ON/OFF Result
      Engine speed 825 r/min Firing of cylinder #1 Yes
      Fuel pressure (7.01.5) 6.66 MPa Firing of cylinder #2 Yes
      Fuel pressure (1015217) 965.72 psi Firing of cylinder #3 Yes
      Atmospheric pressure 992 HPa Firing of cylinder #4 Yes
      Atmospheric pressure 29.4 inHg Firing of cylinder #5 Yes
      Ignition timing BTDC 3 deg Firing of cylinder #6 Yes
      Battery voltage (12-16) 13.77 V Starter switch OFF
      TPS voltage (0.5-4.5) 0.63 V Engine stop lanyard switch OFF
      Throttle valve opening (0-90) 2.7 deg Main switch ON
      Fuel injection duration 1.08 ms Shift position switch OFF
      Water temperature (below 90) 33 C Water detection switch OFF
      Water temperature (below 194) 91.4 F Oil level switch (remote tank) ON
      Intake temperature (below 70) 24 C Oil level switch1(engine tank) ON
      Intake temperature (below 158) 75.2 F Oil level switch2(engine tank) OFF
      Electric oil pump Low Oil level switch3(engine tank) OFF
      Water temp switch (overheat) OFF
      Dual engine system switch OFF
      Shift cut-off switch OFF
      6.Data Logger [Data comparison graph]
      Time Unit Engine speed Fuel pressure Battery voltage TPS voltage Water temperature
      [r/min] (7.01.5)[MPa] (12-16)[V] (0.5-4.5)[V] (below 90)[C]
      20 min 500 6.61 13.48 0.66 47
      19 min 1350 6.76 13.99 0.7 41.5
      18 min 1450 6.71 14.43 0.84 47.5
      17 min 1400 6.71 13.92 0.84 50.5
      16 min 450 6.61 13.84 0.7 51.5
      15 min 500 6.61 13.77 0.7 49.3
      14 min 1200 6.71 14.21 0.7 41
      13 min 900 6.66 13.99 0.7 49.3
      12 min 1100 6.66 13.99 0.7 46.5
      11 min 350 5.49 12.96 0.7 43.5
      10 min 1200 6.76 13.99 0.68 38.5
      9 min 1050 6.66 14.06 1.11 35.5
      8 min 3350 6.71 13.92 4.16 49.3
      7 min 3600 6.71 14.14 3.4 52.3
      6 min 450 6.61 13.48 0.8 53
      5 min 1050 6.76 14.14 0.63 23.5
      4 min 900 6.71 13.84 0.63 34.5
      3 min 900 6.71 14.65 0.63 43.5
      2 min 750 6.71 14.79 0.63 48.5
      1 min 1250 6.76 13.55 1.11 35.5
      0.9 min 500 6.66 13.26 0.74 36.5
      0.8 min 950 6.66 13.11 0.63 28.5
      0.7 min 950 6.66 13.26 0.63 28.5
      0.6 min 800 6.66 13.4 0.63 28.5
      0.5 min 900 6.66 13.48 0.63 29
      0.4 min 850 6.71 13.48 0.63 29.5
      0.3 min 900 6.66 13.55 0.63 30
      0.2 min 950 6.71 13.7 0.63 31
      0.1 min 850 6.66 13.7 0.63 32

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      • #4
        I am really not much help on multiple rigged 300s,
        but why is it saying some of the oil level switches show on and some off?
        and why is this electric oil pump reading low?

        I gather that this read out was while it was running on the hose out of the water.

        is there something different when it is fired up while in the water?
        in other words when the problem shows up

        Why is there nothing showing of rail pressure on the last part?
        Just you did not pick that to be captured?

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        • #5
          It's just one 300 on a skeeter and it won't run if in the water not sure about the yds setup I just got it to see if there was any codes but I talked to a guy with the exact same problem and it was the pump in the vst so I will try that

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          • #6
            you need to figure out the software and set it up properly.
            seems to me it thinks you have 3 motors and 2 think they are low on oil
            Last edited by 99yam40; 02-18-2020, 12:57 AM.

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