RXP-X die and wont start. Need help!

[fido]

I have a 2008 SeaDoo RXP-X, but sometimes and for no reason it just will die while driving.

I have tried to pull the DESS key off, put it back on manny times, but i starts only somtimes...

Wen I pull the DESS key on, the ECM recognized the DESS key as valid (2 short beeps), the fuel pump is running for a few seconds and the instrument lights up as normal, but when I press the start butten, nothing happend.. I can do this manny times, and suddenly it starts.

Sometimes I have to remove the negative battery terminal, but it's not always that either helps.

Periodically, there is no problem at all, and I can run many many hours ...

Thanks for the tips and help! Really appreciate it!

 

[Bills86e]

Unplug the connector for the lanyard post and clean it, then clean the inside of the lanyard itself. Then try it again. You can also clean, dielectric grease and test all fuses, wire connectors, and grounds, unplug the magneto connector plug and clean it too. Hopefully you just have a corroded terminal somewhere that is breaking contact. If not.
Besides grounds, fuses and fuse holders, the main places to be concerned with are the innards of your coil box, and all igniton related connectors, including the stop start switch and lanyard post, mpem, cdi and coil connector.
Worst case senario is a bad ignition pickup in the magneto housing that may be broken or is covered with metal debris and is getting shorted out. Bills86e

 

[fido]

Unplug the connector for the lanyard post and clean it, then clean the inside of the lanyard itself. Then try it again. You can also clean, dielectric grease and test all fuses, wire connectors, and grounds, unplug the magneto connector plug and clean it too. Hopefully you just have a corroded terminal somewhere that is breaking contact. If not.
Besides grounds, fuses and fuse holders, the main places to be concerned with are the innards of your coil box, and all igniton related connectors, including the stop start switch and lanyard post, mpem, cdi and coil connector.
Worst case senario is a bad ignition pickup in the magneto housing that may be broken or is covered with metal debris and is getting shorted out. Bills86e

Hi m8,

I have already checked all fuses, and a lots of connectors (not all of them)
If the DESS post is the problem, will I hear 2 short beeps, and the fuel pump then? Can I open the DESS post?

What is mpem?

Thanks!

 

[fido]

I still need some help here!

Is there anyone out there who have good suggestions for me? Thanks!!!