Start/Stop Dead on 2014 GTI 130 SE

[Frey0357]

Hi everyone. I acquired a 2014 130GTI SE for cheap, knowing it has a problem (99 hours). I've been searching this and other forums to 'get smart' on the issue I have... still not feeling smart!

Here is what I see:
Place DISS on post, machine wakes up, goes through display normally, reads 'Normal Key' and beeps twice. No codes displayed on the display of the machine. Hit the start/stop button and cranking occurs like normal, but no start! Here is what I have done to diagnose what's going on:
- Replaced battery (was working but seemed weak) now reading 12.6 on DVM
- Replaced spark plugs with factory recommended plugs
- Confirmed gas is pumping. Further confirmed gas is pumping to spark plugs - no blockages
- Pumped gas out of tank, replaced with new gas.
- Reseated all connectors, confirmed no corrosion and tested impediance(s) all test good connections
- Tested all fuses in fuseblock. Removed and tested for 12.58 volts - all test good
- Removed relay in fuseblock, cleaned and put back, no change - replaced as precautionary
- Tested pin 85 on relay in fuseblock and find no reading when checking ohms to ground - seems I should get something right?
- Removed all buss connectors in fuse block, some were 'dirty' but not too bad. Cleaned and reseated buss connectors
- Its difficult to check, but tested every wire from the back of the fuseblock - good impediance for grounds, good voltage for positive wires

Unless I have a bad ECU or something I am at a loss for what to do next.

Please help what can you recommend?

Thanks in advance...

--Frey

 

[skiasylum]

Make sure you have startable compression, spark, and the fuel injectors are firing fuel. Could be stuck in drown mode or the TOPS switch is bad.

 

[Frey0357]

Thank you Skiasylum. I have confirmed but didnt mention, compression was good, spark confirmed and fuel injectors are firing fuel. Didnt check Drown Mode or TOPS Switch. I'll move onto those when this stupid rain stops! Thanks for the tip!

--Frey

 

[skiasylum]

If it’s got spark and injectors it’s not in drown mode or a bad tops switch. Only thing left is timing and that’s controlled by the ECU and its input sensors.

To retrieve fault codes on a 2014 Sea-Doo jet ski, follow these steps: insert the safety lanyard and press the SET button five times to initiate the onboard diagnostic display, then use the MODE button to scroll through any displayed codes if multiple codes are present. Once you've reviewed the codes, press MODE again to exit the diagnostic display.

 

[Frey0357]

Ok thank you....that is very helpful! Will I see fault codes even if they aren't present when I first hit the start key and insert the safety lanyard?

 

[Frey0357]

Thanks again Ski....I tried your suggested steps above for diagnostic display, but that does not seem to work with my machine. I followed EXACTLY what you wrote and no luck for getting into any type of diagnostic display. I tried it just connecting the lanyard to the post then pressing the SET button 5 times and I tried it waking up the machine by pressing the start/stop button then attaching the lanyard and pressing 5 times, but no luck with that. Did I do something wrong?

 

[Frey0357]

Ok I was toggling around and found the diagnostic display. There was (2) codes displayed: P0122 & P0222. Both may be related to the TAS sensor and/or the 5volt supply. Even though you mentioned the TOPS sensor, I did test it and confirmed it is getting 5 volts and tests OK, according to the service manual. Service manual also suggests testing the MAPS sensor to confirm it is getting 5 volts....

More to come.... I'll try to test the TAS sensor and confirm it at least has 5 volts. I dont have the recommended software or testing tools for the ECU cables so I am a bit limited...

 

[Frey0357]

Ok, now I'm getting somewhere!
I confirmed I get the following voltage to the following sensors:
- TOPS Sensor: 5.00volts
- TAS Sensor: 5.00volts
- MAPS Sensor: 3.30volts

According to the manual, all (3) sensors share the same 5 volt supply, and for some reason the MAPS Sensor is not getting enough voltage. I did disconnect all (3) sensors to make sure its not a sensor bringing down the 5 volts, and still got the same readings as above. Is this symptoms of a bad ECU or poor wiring connection? Any ideas?

--Frey

 

[skiasylum]

I’m not for sure if a faulty map sensor circuit is going to cause a no start condition. A faulty TOPS switch for sure would. The TOPS switch is a simple mercury switch that closes upside down. The only solution for the two codes I have read of was replacement of the TOPS switch and that was completely unrelated and by accident switching parts from another identical ski. The only problem with that is you have spark and injectors which I don’t think you would have with a bad TOPS. I would also definitely try to rundown the voltage drop on the MAPS sensor circuit by checking resistance of the wire between the sensor and the ECM pin or voltage from the ECM pin itself.

 

[Frey0357]

Is there a way to 'Fool' the ECM just for testing purposes for the TOPS switch? Like a simple mercury switch that is either open or closed?

 

[skiasylum]

Is there a way to 'Fool' the ECM just for testing purposes for the TOPS switch? Like a simple mercury switch that is either open or closed?

Is there a way to 'Fool' the ECM just for testing purposes for the TOPS switch? Like a simple mercury switch that is either open or closed?

I think it would depend if the switch was normally open or closed, you can test the switch and circuit if it’s opening and closing but fooling the ECM who knows. You could try unplugging it if it’s normally open but the ECM might know that it is unplugged and not act right. Check the ECM pin on the MAPS sensor and if it’s 3.3 volts that’s probably a clue your ECM is bad.

 

[Frey0357]

Thanks Ski for your input into my sitation with this "doo". I do have a NEW development however. Since I was second guessing testing I performed yesterday, I went back and retested for spark, and confirmed I have good spark on all 3 plugs. I retested the TOPS sensor and it is fully functional. When I was testing the spark plugs I decided to cycle the engine without any plugs in place just to clear the cyclinders and this functioned as expected. After I reseated all plugs and confirmed good electrical connections I hit the start button and the ski almost started! The display then read Limp Mode with a new error code of P0336. While I cannot explain why I dont get 5volts to the MAPS sensor (3.3v), the whole reason it wont start is due to a faulty camshaft position sensor or wiring associated with this. I'll be testing for voltage at the connector a bit later today. Does this make sense? Thoughts?

Maybe I am getting a bit smarter with this stupid "Doo". LOL

--Frey