oil sensor and bell go off???

[supercharged88]

When I start the jet skii the bell and oil light do not go on but as soon as i go to give it 1/4 throttle the bell goes off and the light comes on shutting the skii down. If i let it idle and warm up for a while it will eventually let me take off and motor runs fine with no sensors or bells going off. I figuered it was just the oil sensor so I got a new one but it still has the same problem. What can I do next.... maybe the oil pump needs adjustment anyone have any ideas or know what could be going on? thanks alot

 

[jpsax]

One of my 2002 GTX skis is having this same exact problem. Oil is fresh and full, replaced plugs, took to dealer and they have no explanation. They just say last resort is to replace computer which is $800 + !!!! I have
also seen posts on other sites with people having similar experiences. I would appreciate some help....

 

[seadoosnipe]

Oil sensors?

The complete electrical system is controlled by micro-controllers working together. Overall, the MPEM (multipurpose electronic module) manages the vehicle electrical system, the EMS (engine management system) controls the engine management and the information center is used to display information that comes both from the MPEM and the EMS. The EMS includes an ECU (electronic control unit), sensors, injectors, electromagnetic valves and ignition system.
That being said, there are 10 sensors (which I’ve posted in the forum previously) that work in your model engine, to control the engines performance settings. There may be a possibility that your OPS (oil pressure sensor) or your OSPS ( oil seperator pressure sensor) may either be bad or picking up a faulty signal.
The low oil pressure warning device is activated when the oil pressure falls under a certain level, the EMS ECU, sends out signals to the beeper and to the information center gauge. The engine will then go into “limp home mode”.
Malfunctions are recorded in the memory EMS ECU and can be checked using the VCK (vehicle communication kit) to see the fault codes. The VCK is the "go between" for the EMS ECU to be connected to the B.U.D.S. (bombardier utility diagnostic software) for troubleshooting, diagnostics and making changes to your set points on your engine. There really isn’t a lot you can do with these engines except to replace a faulty sensor.
You didn’t give a lot of detail as to what happens, except to say that you have the same problem from a prior post. In your post, you say the dealer did a good bit of work, but I don’t see where he checked/replaced your oil sensors.
Was this dealer a Sea-Doo authorized repair facility? If so, my first question to them would be “did they use the B.U.D.S. to trouble shoot your problem”. If there answer was yes, then I’d ask if there were any fault codes present in the memory.
I hope this helps you out some. Let me know what you find out. With the little info you gave me, I’d be willing to think you may have a bad sensor or your wire connectors are loose/dirty.

 

[ScubaDoo]

I think you right on, on this one Louis. It sounds like a oil sensor is bad. I would ask the servicing dealer if any fault codes were present.

 

[Dennis]

Oil Sensor

Hi everyone,
Here is something for you to try if the dealer doesn't offer much help in solving this problem.
Press the SET button 5 times when the ski goes into limp mode. If there is a code it will be displayed on the gauge. If there is no code the display will read " END".
The early model 4TECS had a problem with their oil pressure switches and SeaDoo has come out with updated switches. If you are having this problem the code you receive will typically be P-1200, P-1201 or P-1202.
It is highly recommended that you replace both oil pressure switches even though usually one is giving a problem.
The updated part no. 420 256 885 is for the switch that is located at the front of the engine by where you pour oil in. This switch senses crank case air pressure and is usually the one giving you a problem.
The updated part no. 420 856 530 is for the switch located on the right side of the engine towards the rear. This switch senses engine oil pressure.
These switches cost about $25.00 ea.
Hopes this helps you out,
DAWG

 

[seadoosnipe]

"P" codes...?

Dawg, is this true to the newer model 4-TEC's? I'm in the 07 manual now and although it talks about the fault codes, they don't describe any way for you to access them, like in the 2003 models........
Just wondering. I gave the info above after looking for a way to read the codes in that model and coudn't find anything, like in the old models you could scroll through the info center to look at them.
........I hope he gives it a try...I'm curious to see what he comes up with.

 

[Dennis]

P Codes

You got it right SEADOOSNIPE,
The method of using the "SET" button to access "P" codes only applies to older 4TECS. The newer models don't have a "SET" or "MODE" button (at least that I know of). I'm not sure what year SeaDoo made the change. It was either 06 or 07. I sure wish SeaDoo would of kept the "SET" button as a way of accessing codes. It was a big help in diagnosing problems for tech's, like me, that don't have access to B.U.D.S.
Thanks, DAWG

 

[seadoosnipe]

Uh,.....duh me!...

Boy, I feel like a dummy now. I just re-read the post and I see he does have an older model........now I see why you made the post. For some reason, I though he had an 07 model............egg in my face.....:ack::rofl:
He hasn't been back in to check the posting and he really only gave his description by anothers post. So I'll be curious to see what he does.........
Dawg, I read where you say this was a problem with the oil pressure switches earlier and they've corrected that. Have you had a lot of these in the past? I haven't seen many members with this complaint.

 

[jpsax]

Hi and THANKS for all your help!! Sorry for not being more descriptive...
I took it to a certified dealer at end of season (Sept.) and he "reset" codes and then could not find anything - not sure exactly what that meant. My father-in-law said he probably just disconnected the battery to reset and then cranked it warm (works fine when warm). I took it to the lake next day and it did the same things. I have winterized the skis and just now trying to schedule time to get them ready for summer I will certainly take any of the information you guys can provide and see if that helps....more to come

 

[Dennis]

Oil Pressure Sensors

Yeah, the older 4TECS( I owned 2 of them) have issues with these oil pressure sensors. I learned that first hand with one of mine. That reason it's so hard to diagnose(even for a dealer apparently) is because the fault is so erratic. You could take your ski out for a whole day and have no problems. The next day it might go into limp mode several times for no apparent reason, etc. I kept checking for codes after I got the ski home but found nothing. Then one day I was the person on the ski when it went into limp mode and instead of immediately shutting the ski off I left it running in limp mode and hit the set button 5 times. JACKPOT!!! CODE P-1202
I shut the ski off... restarted it ... and, as usual, it ran fine the rest of the day!!!! Because I'm a PREMIUM member (Hint for those of you who are not) I accessed the shop manuals here in the forum and found that code P-1202 was referring to the crank case air pressure sensor in the front of the engine.
I did the recommended test but it showed to be good. I then called the local dealer and was told that they had a problem with the oil pressure switches giving false readings and that both switches were updated. I replaced both switches and haven't had any problems since. I have run in to the same complaint from people who I service their skis' and here's what I do:
I first check the skis' charging system. If it checks good ( not under charging or over charging) I replace these swithes. So far it has fixed everyone of them. Thanks, DAWG

 

[robin savell lloyd]

Yeah, the older 4TECS( I owned 2 of them) have issues with these oil pressure sensors. I learned that first hand with one of mine. That reason it's so hard to diagnose(even for a dealer apparently) is because the fault is so erratic. You could take your ski out for a whole day and have no problems. The next day it might go into limp mode several times for no apparent reason, etc. I kept checking for codes after I got the ski home but found nothing. Then one day I was the person on the ski when it went into limp mode and instead of immediately shutting the ski off I left it running in limp mode and hit the set button 5 times. JACKPOT!!! CODE P-1202
I shut the ski off... restarted it ... and, as usual, it ran fine the rest of the day!!!! Because I'm a PREMIUM member (Hint for those of you who are not) I accessed the shop manuals here in the forum and found that code P-1202 was referring to the crank case air pressure sensor in the front of the engine.
I did the recommended test but it showed to be good. I then called the local dealer and was told that they had a problem with the oil pressure switches giving false readings and that both switches were updated. I replaced both switches and haven't had any problems since. I have run in to the same complaint from people who I service their skis' and here's what I do:
I first check the skis' charging system. If it checks good ( not under charging or over charging) I replace these swithes. So far it has fixed everyone of them. Thanks, DAWG

dennis is truely the seadoo man. you go dawg

 

[Dennis]

Not That Smart

ROBIN, you are too kind. I'm really not that smart. Having said that............
a good buddy of mine from up north is here in SW FL and we've been spending alot of time working on our latest invention........a TIME MACHINE!!
All of this R&D on the prototype is taking alot more beer than we expected so we're going to make another beer run soon in the name of science!! LOL LOL
We figure we will take it easy tomorrow and just hang out and split atoms or something! LOL
DAWG

 

[robin savell lloyd]

ROBIN, you are too kind. I'm really not that smart. Having said that............
a good buddy of mine from up north is here in SW FL and we've been spending alot of time working on our latest invention........a TIME MACHINE!!
All of this R&D on the prototype is taking alot more beer than we expected so we're going to make another beer run soon in the name of science!! LOL LOL
We figure we will take it easy tomorrow and just hang out and split atoms or something! LOL
DAWG

cool that sounds like my kind of subject. can we also talk about black hole and antimater? maybe not because I would be lost as I know very litle on these subjects and they are over my head. and I know I do not want one of those bad head aches. lol

 

[Dennis]

Inventions

Hi ROBIN,
Strange that you should mention that. The only thing that we've discovered for sure during this weeks R&D is the more beer you drink the less complicated
things like black holes, anti-matter and time machines really are! A few more beers and I will reach genius status!!! LOL LOL
DAWG

 

[seadoosnipe]

Theory or relativity!.....

Now, your talking my language.......matter and antimatter!......what an explosive subject.
Now when you start discussing it's use in the hyper drive engines of the USS Enterprise, let me know.....I'll want to get in on that one!..........:rofl:

 

[Dennis]

Hyper

HI LOUIS,
We're only about six beers away from our yearly discussion on the pros and cons of HYPER DRIVE. We'll get back to you on this. Any and all input from you will be greatly appreciated !
DAWG

 

[kustomkarl]

Mines on Draft!

HI LOUIS,
We're only about six beers away from our yearly discussion on the pros and cons of HYPER DRIVE. We'll get back to you on this. Any and all input from you will be greatly appreciated !
DAWG

I have similar discussions but mine are by the pitcher...:rofl: :ack:

Karl