KVGT issue

[funwithfuel]

Are there no other codes? Are you able to monitor voltage and position through the instrument panel? I think, I would want to monitor the voltage and position KOEO, and compare those values to KEOR, and then under load, so full throttle, arm in to end of travel and hit the boost button. (Left thumb button)

 

[funwithfuel]

After checking values, I would follow guidance provided by LACHAU, we all know it's a PITA to backprobe connectors but not everyone has all the breakout boxes. I'm concerned mostly with the connectors at the EGR housing that act as a go-between. Verify your circuit integrity from end to end, yes, all the way to the ECM. Be EXTREMELY CAREFUL not to spread the pin sockets in the cavity. I always use a terminal removed from an old sensor and carefully check for drag while inserting and withdraw. While you have your measuring equipment hooked up, twist and manipulate the harness along it's path. Pay particular attention to right at the connectors and at each P clamp. Your looking for wires broken within the insulation(common Deutsch connector problem) and chaffing at clamps and bends. When measuring the circuit, don't forget to measure against the neighboring circuit for cross-bleed. Good luck

 

[funwithfuel]

By the way, did we ever get that oil changed with quality oil /low ash?

Egr screens were removed and cleaned. Booster pressure was good and getting 4.97 volts to the kvgt sensor plug

 

[joe--h]

4 pages of this and not one report of "It's fixed !"

Joe H

 

[funwithfuel]

Well, OP, Vetech63 corrected his issue. Rather than open new threads, everyone resurrects this one. There's a multitude of cause and corrections for "just this issue"

 

[alexc]

4 pages of this and not one report of "It's fixed !"

Joe H

have you resolve your issue ?

 

[alexc]

Well, OP, Vetech63 corrected his issue. Rather than open new threads, everyone resurrects this one. There's a multitude of cause and corrections for "just this issue"

did you now how they resolve their issue ? what was the cause?

 

[alexc]

I went and ran the machine with the DPF disconnected and it operated for about 10 min without throwing the code. Im going to clean the dpf tomorrow and see if i can get it back to work.

does the dpf was the cause ?

 

[Hoe hand]

Finally fixed the 240 ended up being the position sensor and a wiring harness issue the new turbo the sensor was bad from factory used the old turbo sensor and it didn't fix nothing got to chaseing the engine harness and found rubbed and stripped wires fixed that and it is back to its old self runs like new

 

[JVRatc2]

Saturday 4/27/2024
My 2013 PC240LC-10 generated this same L03 CA2387 code last week. I used the information gathered from this post to help me determine what was causing it. I removed the servo block, or what I assume is the servo block, to access the mechanical arm of the gate inside the turbo. Used a crescent wrench to work the gate open and closed many times until I got a good metal to metal contact sound in both directions. In the beginning it was absolutely stuck in the closed position, soft sticky feel going closed.
Used the machine for several hours after getting back together without the code coming back.
Anyone try this with the same luck?

 

[itsall*****junk]

Saturday 4/27/2024
My 2013 PC240LC-10 generated this same L03 CA2387 code last week. I used the information gathered from this post to help me determine what was causing it. I removed the servo block, or what I assume is the servo block, to access the mechanical arm of the gate inside the turbo. Used a crescent wrench to work the gate open and closed many times until I got a good metal to metal contact sound in both directions. In the beginning it was absolutely stuck in the closed position, soft sticky feel going closed.
Used the machine for several hours after getting back together without the code coming back.
Anyone try this with the same luck?

I got the same thing going on with my 2013 210 lc -10. I will try this and report back. This seems to be a common problem that all dealers should know about by now and how to fix immediately.

 

[Hoe hand]

Finally ended up getting mine fixed I hope it ended up being a mixture of things the reason I was getting a code with the new turbo as soon as key was powered up was kvgt sensor was bad from Holset reused old sensor and fixed that code had a komatsu mechanic tell me to check the harness leading up to the egr block we're all your plugs for your turbo plug and found a bad spot after a lot of lost sleep and choice words it's been running for a month

 

[itsall*****junk]

So what year was your machine? So your turbo probably did not need to be replaced right? It was that sensor most likely?

 

[itsall*****junk]

Update on my ca2387 code problem. For whatever reason my code goes away and doesn't return if the filters are blown out and also the radiator and hydraulic cooler is blown out really good. Tells me something inside engine conpartment is sensitive to more heat than normal. Hard to tell if this is mechanical or an electrical issue

 

[Hoe hand]

Update on my ca2387 code problem. For whatever reason my code goes away and doesn't return if the filters are blown out and also the radiator and hydraulic cooler is blown out really good. Tells me something inside engine conpartment is sensitive to more heat than normal. Hard to tell if this is mechanical or an electrical issue

yes your correct that sensor was all that was wrong with mine and the harness was chewed on between the back of the counterweight and the block .. it may be a shot in the dark but I would check your pressures coming from booster pump if its getting warm causing it could be a sign of pump getting warm and loosing pressure

 

[marlbaroman99]

yes your correct that sensor was all that was wrong with mine and the harness was chewed on between the back of the counterweight and the block .. it may be a shot in the dark but I would check your pressures coming from booster pump if its getting warm causing it could be a sign of pump getting warm and loosing pressure

could i get a part number for the booster pump?