RPM lost at 2800 PCM Pro Boss GT40 Ski Nautique 96 |
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Basler
Newbie Joined: May-31-2019 Location: Switzerland Status: Offline Points: 24 |
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 10650 |
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The picture shows a little over 40 psi , did you mean to say 40 or 4 ?
Edit I think you're saying the picture is at 3300 rpm and you have a little over 40 psi but at idle it drops to 4 or so. That's on the low side at idle If pressure is less than 5 psi and you hit about 2700 to 2800 rpm, you'll go into limp mode. |
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 10650 |
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You could put on a temporary mechanical gauge to verify pressure.
What are you using for oil? |
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Basler
Newbie Joined: May-31-2019 Location: Switzerland Status: Offline Points: 24 |
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 10650 |
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The 5 in the manual is right.
It sounds like you're good but you have a bad oil pressure switch which you already figured out |
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Basler
Newbie Joined: May-31-2019 Location: Switzerland Status: Offline Points: 24 |
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Oh man 🙈🙈🙈 all clear thx for the explanation im far away of bad pressure 😂😂😂
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 10650 |
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If you're saying your idle is way over 5 and you have 40 plus PSI at 3300 rpm.......all's good
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bthorsen
Newbie Joined: May-16-2019 Location: MI Status: Offline Points: 15 |
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I'm reading this post as I have the engine stumble when above 2800 rpm issue... my boat runs great otherwise and starts right up.
So regarding the 2 sensors, oil and water which are tan/black wires,, if I disconnect both and leave the circuits open, this will send a "good" message to the ECM that systems are ok and boat will run correctly. Conversely, connecting either or both wires to ground would put the system in LIMP mode. Is that correct? |
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Basler
Newbie Joined: May-31-2019 Location: Switzerland Status: Offline Points: 24 |
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Yes i think this is correct. I released both circuits and everything runs great now. I ordered both sensors but didnt had the time to install those yet. Still driving with the disconnected sensors 🙈 but everything is fine. I always check the gauges so im sure there is no faulth.
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