L4060 DPF showing PM 106% No Regeneration or lights!

[fak4]

My auto regeneration light can only be turned on while the key is in "on" position before cranking the engine. Once the engine starts, it goes out indicating to me that it is no longer in "auto regeneration" mode. I'm getting concerned now because my PM shows 106% and, I do not want to clog up my DPF. Depressing the "parked regeneration" button does nothing. I get no light when the button is depressed.

I do have a P0102 (mass air flow sensor) error code at the moment and I'm wondering if this has something to do with it not regenerating.

The tractor only has 318 hrs on it. It's a 2015 model which I believe is set to default to inhibit mode upon start up.

It may be operator error, but I've read and re-read the owner's manual multiple times to no avail. I have a suspicion something is wrong.

 

[sheepfarmer]

My auto regeneration light can only be turned on while the key is in "on" position before cranking the engine. Once the engine starts, it goes out indicating to me that it is no longer in "auto regeneration" mode. I'm getting concerned now because my PM shows 106% and, I do not want to clog up my DPF. Depressing the "parked regeneration" button does nothing. I get no light when the button is depressed.

I do have a P0102 (mass air flow sensor) error code at the moment and I'm wondering if this has something to do with it not regenerating.

The tractor only has 318 hrs on it. It's a 2015 model which I believe is set to default to inhibit mode upon start up.

It may be operator error, but I've read and re-read the owner's manual multiple times to no avail. I have a suspicion something is wrong.

First does the button you are pushing have a slash through the symbol? If so then default is auto. Somewhere 2014 or 15 kubota changed the default.

Second, it won't regenerate unless temp and other conditions are right. The lights should only be meaningful if engine is running. Error code may well stop it.

Not sure where pdf went to, have to leave site right now will trynto help more later.

 

[fak4]

No slash through button symbol. My unit defaults to inhibit if no button is pushed at start up. I am aware of the other conditions necessary for regeneration such as engine speed and coolant temperature. I've run my machine for quite a while at 2000 RPM's and still nothing. I watch the p.m. climb fairly quickly from 97% to 106%. The 106% PM has me concerned as I do not want to clog my DPF. I just bought this thing from an equipment dealer. I sure hope I didn't just find out why the person traded it in with such little hours.

The owner before me bought it at the end of 2014 and the equipment dealer told me it was a 2015 model.

 

[fak4]

I forgot to mention that if I start the engine and push the button immediately afterward as instructed in the owners manual no light comes on. The only way to get the auto regen light to come on is to turn the key to the ON position prior to cranking and hold auto regen down. This will get the light to illuminate butAS soon as the engine cranks over it goes out.

 

[1970cs]

You should probably call your local dealer and have them hookup the digimaster computer and do a forced regen!

And maybe they can figure out what's up with MAF.

Pat

 

[sheepfarmer]

At best it would only do a parked regen for you, so the question is what was happening before this? Lights blinking ? Buzzers sounding? When did the error message appear? Have you been running it with that message for a while? If you can't get the parked regen directions to work, don't run it, and call your dealer as Pat suggests.

 

[fak4]

I've gotten no lights, no warning buzzers, no phase 1-2- etc. it's just business as usual. You can not do a parked regen unless it gives you a sign. It's giving me no indication other than 106% PM. It's driving me mad but the dealer is closed for the weekend.

 

[fak4]

You should probably call your local dealer and have them hookup the digimaster computer and do a forced regen!

And maybe they can figure out what's up with MAF.

Pat

Dealer found a bad ground in harness from computer to MAF. Error codes & bad ground prevented regeneration & auto/parked regen button indicator lights from working.

 

[sheepfarmer]

Thanks for update! Glad it is fixed.

 

[jryser]

Awesome.


Sent from my iPhone using Tapatalk

 

[skeets]

I love a happy ending

 

[Newlyme]

Now that the dealer has identified and repaired the problem. A couple questions.

I'm getting concerned now because my PM shows 106% and, I do not want to clog up my DPF.

Was the DPF really at 106%?
Did they do a forced regen there?
Or did they let the tractor regen on its own?
After all is said and done and the tractor is back to a normal running condition what is the DPF reading now?

I was just wondering if this incident adversely affected the operation/longevity of the DPF.

Glad to hear it was an easy fix.

 

[lugbolt]

As a follow-up, yes, most of the engine-related codes (MAF, crank sensor, etc) can mess with the regeneration system. So if you have a code, get it fixed. Neglecting it can cost you a DPF cleaning if you ignore it long enough.