NX4510 CEL and limp mode

[rademamj1]

My thoughts also. Unfortunately, Kioti software does not give technicians the range it is supposed to be in?? They tested a new machine off the lot before they came to my place. All 3 injectors on the new engine gave a value of about 14.5. Mine were 8, 10 and 12.5. I think these were shutdown values. Am waiting to hear what Kioti will replace.

I remember hearing a range of 12 to 17 is acceptable for most diesel fuel injectors, with the factory preset at 14.5 ohms. Definitely two injectors are showing bad, with a 3rd injector trending bad. You have a good Kioti dealer, trained, caring and motivated to customer support. Best of success in resolving the problem.

 

[Kioti Dave]

So dealer called and said injector #1 will be replaced. Now waiting for parts.

 

[justman777]

Seems like a lot of driving to test if a single injector would solve an issue. But hey....so long as it's their money and not yours.

 

[Kioti Dave]

Seems like a lot of driving to test if a single injector would solve an issue. But hey....so long as it's their money and not yours.

Yes. Very thankful for warranty. Hope I can resolve all issues before it expires. Sometimes wish I had bought a low hour pre tier IV used unit.

 

[JoelD]

Agree on the pre-emissions machines Dave. One big reason (and of course money) why I’m happy to keep my 2004 machine.

 

[Kioti Dave]

Agree on the pre-emissions machines Dave. One big reason (and of course money) why I知 happy to keep my 2004 machine.

Yes, working on the old 2003 Kubota B7800 was a breeze! Still have 3.5 years emissions warranty. If these problems persist, may have to look for an older machine.

 

[rademamj1]

I just realized that every single tractor 25.5hp and above, sold in the USA is required by the EPA to have a manufacturer emissions warranty of 5 years or 3000 hours on the tractor. The emissions warranty must be fully honored by each manufacturer, as required by law, except in cases of altered emissions or owner negligence.

All along I thought each manufacturer was just trying to be nice to its customers with these long Warranty periods on emissions.

 

[Kioti Dave]

I just realized that every single tractor 25.5hp and above, sold in the USA is required by the EPA to have a manufacturer emissions warranty of 5 years or 3000 hours on the tractor. The emissions warranty must be fully honored by each manufacturer, as required by law, except in cases of altered emissions or owner negligence.

All along I thought each manufacturer was just trying to be nice to its customers with these long Warranty periods on emissions.

Yes. Kioti has a 2 year 'bumper to bumper', 5 year emissions and 6 year powertrain warranty. One of the reasons I went new. Hopefully can work out all the bugs.

 

[Kioti Dave]

UPDATE; dealer came and replaced injector #1. Took about 4 hours. Tractor seemed to be running good, until about 5 hours in and it went into auto regen. Ran regen fine, so will have to see how long until the next regen. I think there was more than 1 bad injector. Fortunately, the dealer is great and comes to my place to fix tractor. No complaints there. Just hope we can get this sorted out soon.

 

[rademamj1]

Well that is really good news. And so your original thoughts a month ago, on it being a bad injector was correct. Let's hope to see the automatic regens continue.