Xr4046 HELP!!!

   / Xr4046 HELP!!! #1  

Bigirish55

New member
Joined
Aug 24, 2021
Messages
3
Tractor
2015 Ls xr4046
Where is my diagnostic port!!!!!????
I'm having some crazy issues with my xr4046. Getting no power internmently to my fuel from my ecu I can't do anything and it driving me nuts now it appears I do not even have a diagnostic port.
 

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   / Xr4046 HELP!!! #2  
Even if you find the diagnostic port, you won't be able to do much either. Tractors are not like onroad vehicles, where you can buy a scanner and basically do a bunch of stuff. Tractor manufacturers use proprietary software that only the dealers can use.

Plus, doesn't that tractor use a Shibaura engine with a mechanical injection pump? If yes, then there is no ECU for the engine. Maybe some sort of datalogger for the emissions stuff.

I say, check your fuses and wiring. Most likely a stick popped in the wrong place and took some wires with it.
 
   / Xr4046 HELP!!!
  • Thread Starter
#3  
This does have the shibaura engine but it most definitely has an ecu. It's a box connected directly over the battery. Of which I have unhooked multiple times trying to reset and periodically does make it work for a second. I have checked and cleaned every ground I can find. Ihave metered every fuse and relay all of which shows power going to the ecu but no power ring directed to the fuel function. I can jump the fuel pump and it works.
 
   / Xr4046 HELP!!! #4  
This does have the shibaura engine but it most definitely has an ecu.

I can jump the fuel pump and it works.

I believe that ecu controls the dpf burner but the engine is a mechanical injection pump.

Jumping the fuel pump? The little electric one or jumping the fuel shut off solenoid?
 
   / Xr4046 HELP!!!
  • Thread Starter
#5  
I jumped the electronic pump at the fuse and it will start to prime. All I know is periodically I can unhook the battery for a extended period of time then hook back up and it will try to start. I ohmed the shut off solenoid and it checked out good. However I did try to straight wire it and it would not open up.. The issue I'm having is there seems to be no power going to the harness to the fuel supply and I just now found I have now power to the engine control fuse on the left side of the cab. Every other fuse in there has power but that one. Fuse is good just no power.
 
   / Xr4046 HELP!!! #6  
does engine turn over but not start?i have a 2014 and my data port is under the cover you have off.if engine not turning over then check all your safty switchs and pedal switch.i havnt been able to find repair manual for mine yet.would be great to find wiring manual.let me know what you find
 

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