Forgot to say I didn't check the pressure at the vst I couldn't find a tester with a small enough fitting but he replaced his with one of the 50 dollar after market pump and it is still working three years later so I will give it a try
Forgot to say I didn't check the pressure at the vst I couldn't find a tester with a small enough fitting but he replaced his with one of the 50 dollar after market pump and it is still working three years later so I will give it a try
Im still watching to see what this turn out to be, sounds just like mine.
I will definitely post after I get it figured out I have good fire and and good compression so I would think it has to be fuel I changed both lp pumps and I have 1000 psi when running so hopefully the pump in the vst is my problem one thing about it I know a lot about a hpdi now lol it's probably the easiest motor I have ever rebuilt
Update tomorrow hopefully
Last edited by skeeter21i; 02-27-2020 at 07:24 PM.
Found any thing out ?
Well Amazon or usps lost my first pump then they sent the wrong pump and finally today I got the correct pump hopefully will get to try it out this weekend
No go with the new pump but I think the problem is fixing to show itself I just ran it on the hose and all port side cylinders are not working properly I'm getting fuel and fire but when I pull the plug wires off 2 4 or 6 it makes no difference I swaped the plugs and still the same I swapped injector drivers still the same I'm thinking crank position sensor or computer anyone have any ideas
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Save date & Time At 09:22 On March 07 2020 ECM No. 6C98591A21 Model Name Engine Serial No. (P.I.D.#.) Customer Name Dealer Name 1.Diagnosis Item Result Code 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 2.Diagnosis Record Item Occurred Code Atmospheric press sensor 306 22 3.Engine Record Data Item Result Occurred Engine speed maximum 5750 303.8 Fuel pressure minimum 0.12 266.9 Over rev.control record 9 Overheat record 42 4.Engine Monitor Monitor Item (DATA) Result Unit Monitor Item ON/OFF Result Engine speed 0 r/min Firing of cylinder #1 No Fuel pressure (7.0±1.5) 3.88 MPa Firing of cylinder #2 No Fuel pressure (1015±217) 562.16 psi Firing of cylinder #3 No Atmospheric pressure 972.3 HPa Firing of cylinder #4 No Atmospheric pressure 28.8 inHg Firing of cylinder #5 No Ignition timing - deg Firing of cylinder #6 No Battery voltage (12-16) 13.18 V Starter switch OFF TPS voltage (0.5-4.5) 0.65 V Engine stop lanyard switch OFF Throttle valve opening (0-90) 3.1 deg Main switch ON Fuel injection duration 0 ms Shift position switch OFF Water temperature (below 90) 48.5 °C Water detection switch OFF Water temperature (below 194) 119.3 °F Oil level switch (remote tank) ON Intake temperature (below 70) 14 °C Oil level switch1(engine tank) ON Intake temperature (below 158) 57.2 °F Oil level switch2(engine tank) OFF Electric oil pump - Oil level switch3(engine tank) OFF Water temp switch (overheat) OFF Dual engine system switch OFF Shift cut-off switch OFF 5.Data Logger [Engine operating hours according to engine speed] Engine speed Time[h] - 1000 r/min 217.8 1000 - 2000 r/min 16.7 2000 - 3000 r/min 1.3 3000 - 4000 r/min 31.6 4000 - 5000 r/min 26.7 5000 - 6000 r/min 12.2 6000 - 7000 r/min 0 Total hours of operation 306 6.Data Logger [Data comparison graph] Time Unit Engine speed Fuel pressure Battery voltage TPS voltage Water temperature [r/min] (7.0±1.5)[MPa] (12-16)[V] (0.5-4.5)[V] (below 90)[°C] 20 min 2700 6.86 14.21 1.6 52 19 min 3800 6.81 13.92 2.93 52 18 min 3300 6.81 14.28 2.95 52 17 min 1050 6.71 14.06 1.33 53.5 16 min 900 6.71 14.06 1.19 53 15 min 700 6.66 14.5 1.39 53 14 min 1350 6.81 13.18 1.31 23.5 13 min 700 6.66 13.4 0.92 45 12 min 1150 6.66 12.89 1.97 50 11 min 1400 6.81 13.92 1.21 52 10 min 250 6.03 12.38 0.66 55 9 min 2000 6.71 13.55 1.72 52.7 8 min 500 6.61 12.82 0.82 54 7 min 1650 6.71 13.55 1.41 51.5 6 min 750 6.61 13.55 0.94 52.3 5 min 800 6.71 14.36 0.68 21 4 min 750 6.71 14.21 0.68 37.5 3 min 900 6.71 14.06 0.7 41.5 2 min 700 6.71 14.28 0.64 42.5 1 min 700 6.71 14.28 0.64 42.5 0.9 min 750 6.71 14.58 0.64 43.5 0.8 min 750 6.71 14.14 0.64 44.7 0.7 min 600 6.66 14.36 0.64 46 0.6 min 550 6.66 14.28 0.64 47.5 0.5 min 550 6.66 14.14 0.64 48.5 0.4 min 550 6.66 14.21 0.64 49 0.3 min 500 6.61 14.14 0.64 49 0.2 min 550 6.66 14.14 0.64 49.3 0.1 min 550 6.66 14.21 0.64 49.3
What were the condition of the reed valves?
We're all the filters replaced including the secret one? It runs good on the muffs. Did you replace the thermostats? While in the water if you trim up the motor so the exhaust is above the water does it idle normal?
Reeds look brand new yes all filters and basket filters changed no trash in any of them vst was spotless it was running fine on the trailer but now it's getting worse and will not idle on the trailer but it's only running on 3cylinders now 2 4 and 6 are getting fuel and fire but when I pull the wires off it makes no difference so it has to be firing at the wrong time on 2 4 and 6
Any idea if this could cause this problem
2.Diagnosis Record
Item Occurred Code
Atmospheric press sensor 22
Have a look up your exhaust tuner ...may have blockage from old piston or other debris. I have had 1 with that code 22 and ended up replacing ECU to fix problem.Good luck keep us posted on what you find .
Does the ex Turner have two ports so that the port side only could be stopped up and thanks for the help
Looks like its narrowed down to tuner or ECU, Im thinking the tuner and back pressure. Been wrong many times before.
Tuner would be cheaper with my luck it's the 1400 ecu hopefully someone will chime in on if just the port side of the tuner can stop up
was going to try a new ecu but there are not any available in the us and could take 30 to 60 days from japan here is the part number if anyone has one laying around lol 6C9-8591A-21-00
Could you send it to Simmons or Hydro tech and have them check it out, i would offer mine if you were not so far off, but i think we have the same problem. Maybe Jethro i mean yammy 911 will chime in or maybe call Wayne at Hydro Tech for more insight.
I did talk to hydro they were a big help he gave me a few numbers that will work on my motor and I got lucky and found one at a marine dealer on Ebay so I will know as soon as it gets here
Tried the ecu still the same I did change the port side plugs and it will idle in the water as long as it is 1400 rpm or higher if I have it at 700 to 900 it will only idle on the hose still I think the cheap Amazon vst pump can't handle the 300 so I have a Yamaha pump on the way
This is the next step if the pump is not it Screenshot_20200317-181451_Chrome.jpg
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