2014 M108S fueling / throttle issues

[headhunter]

Not 100% sure what the issue is here. Had an injector pump and ecm stolen off the tractor. Got one off of a unit that had been on fire. Replaced the field temp sensor on the injector pump and cleaned the screen and the valves internally and now the tractor runs again, however only fuels between 25 & 30% throttle. Doesn't miss, spot, sputter anything just only fuels up to xx level.

Any help would be appreciated!

 

[eserv]

Not 100% sure what the issue is here. Had an injector pump and ecm stolen off the tractor. Got one off of a unit that had been on fire. Replaced the field temp sensor on the injector pump and cleaned the screen and the valves internally and now the tractor runs again, however only fuels between 25 & 30% throttle. Doesn't miss, spot, sputter anything just only fuels up to xx level.

Any help would be appreciated!

Sounds like it is in limp mode. The injectors need to be "calibrated" to the ECM. There is a number on them that needs to be entered into the ECM with diagmaster. I don't know that that is what is causing it to be in limp mode but the only way to proceed from here is by connecting it to Diagmaster and seeing what faults are showing.

 

[headhunter]

That's what we've been thinking is limo mode. Didn't think of the injectors needing calibrated. Since the pump and ecm came off of another 2014 108s.

 

[eserv]

That's what we've been thinking is limo mode. Didn't think of the injectors needing calibrated. Since the pump and ecm came off of another 2014 108s.

Is there any code showing?

 

[eserv]

That's what we've been thinking is limo mode. Didn't think of the injectors needing calibrated. Since the pump and ecm came off of another 2014 108s.

You need the injectors and in the right holes to have a matched system.

 

[eserv]

The ECM doesn't know what injectors are in there but because there is small variations in how much fuel gets injected by a certain pulse time they calibrate the injectors and give each one a number that the ecm interprets so that each injector injects the exact amount that is required. If they don't match the engine won't run as smoothly and this can be picked up by the crank and cam sensors causing the ecm to "think" an injector is failing.

 

[headhunter]

Well it just so happens we have the whole burnt tractor. So would it be easier to track down someone to calibrate/ hook them together. Or to swap the injectors?

 

[eserv]

Well it just so happens we have the whole burnt tractor. So would it be easier to track down someone to calibrate/ hook them together. Or to swap the injectors?

even if you swap the injectors you will still need the diagmaster tool to reset it. Kubota have a record of the injector numbers. But it might just work OK with a simple reset via diagmaster.