Particulate filter delete

tomt574 · Mar 12, 2020

LouNY said:
Several ways to work on that if it did, the taps could be angled which could increase or decrease pressure depending on the angle relationship with the flow,
or simply install the first sensor in the exhaust and the second past a muffler or in the air.
Untill a person is actually working on it it is hard to say.

yes you would have to figure out what that normal DP is so you would have a baseline and just fool the system. I saw a company that claims to have programs to disable the I/O in the ECM. I saved their link. I need to follow up and see what the actually offer. Basically you would just leave everything in place and just disable the I/O to the regen. That way if you needed to bring it somewhere where they would check you could just enable the regen back to factory. Now if you could get a spool piece to slip in where the DPF is that way it would just flow through that would be great. You could always just bolt it back in if need be.

I have not read up or called these guys yet but this is the link I found and the say they have what it takes to delete the DPF, EGR..etc Removal of EGR-DPF-UREA | Diesel Spec Agriculture

ericm979 · Mar 12, 2020

Your TYM574 has a Kukje engine. If it's like the Kukje's in Bransons, and it probably is, it has a DOC+DPF and mechanical fuel injection. The only electronics are the data logger that records info from the temp sensor and differential pressure sensor in the DOC+DPF for use by the dealer, and also lights up the indicator light in the dash.

This system does not have regens. It does a continual low temp regen of the DPF. If you run the engine hard reasonably often and don't idle it around a lot, it will work with no problems.

A few people here have had problems with it clogging. Usually they're in cold climates or can't or won't run the engine hard. You can replace the DOC+DPF with a muffler and just leave the data recorder unplugged. Some people gut the DOC+DPF but a better way is to get a muffler shop to adapt a muffler to replace it. It's not hard for a shop to do, or you can do it yourself if you can weld exhaust pipe. If you replace the DOC+DPF rather than gutting it, it can be returned to stock should you or a future buyer wish. I'd also recommend using the DOC+DPF as is and waiting until you have a problem before you consider replacing it. One guy here did before and after dyno tests and did not see an improvement in HP from removing the DOC+DPF. Kukje sized it appropriately to not reduce performance.

tomt574 · Mar 12, 2020

ericm979 said:
Your TYM574 has a Kukje engine. If it's like the Kukje's in Bransons, and it probably is, it has a DOC+DPF and mechanical fuel injection. The only electronics are the data logger that records info from the temp sensor and differential pressure sensor in the DOC+DPF for use by the dealer, and also lights up the indicator light in the dash.

This system does not have regens. It does a continual low temp regen of the DPF. If you run the engine hard reasonably often and don't idle it around a lot, it will work with no problems.

A few people here have had problems with it clogging. Usually they're in cold climates or can't or won't run the engine hard. You can replace the DOC+DPF with a muffler and just leave the data recorder unplugged. Some people gut the DOC+DPF but a better way is to get a muffler shop to adapt a muffler to replace it. It's not hard for a shop to do, or you can do it yourself if you can weld exhaust pipe. If you replace the DOC+DPF rather than gutting it, it can be returned to stock should you or a future buyer wish. I'd also recommend using the DOC+DPF as is and waiting until you have a problem before you consider replacing it. One guy here did before and after dyno tests and did not see an improvement in HP from removing the DOC+DPF. Kukje sized it appropriately to not reduce performance.

yes you are correct. that was one thing i really like. the kukje is very simular to a cummins. Kukje has built many cummins engines. My understanding is it is basically a cummins engine design.
there is no regen. there have been some issues with clogging but when ran continuously at low rpm.

tomt574 · Mar 12, 2020

ericm979 said:
Your TYM574 has a Kukje engine. If it's like the Kukje's in Bransons, and it probably is, it has a DOC+DPF and mechanical fuel injection. The only electronics are the data logger that records info from the temp sensor and differential pressure sensor in the DOC+DPF for use by the dealer, and also lights up the indicator light in the dash.

This system does not have regens. It does a continual low temp regen of the DPF. If you run the engine hard reasonably often and don't idle it around a lot, it will work with no problems.

A few people here have had problems with it clogging. Usually they're in cold climates or can't or won't run the engine hard. You can replace the DOC+DPF with a muffler and just leave the data recorder unplugged. Some people gut the DOC+DPF but a better way is to get a muffler shop to adapt a muffler to replace it. It's not hard for a shop to do, or you can do it yourself if you can weld exhaust pipe. If you replace the DOC+DPF rather than gutting it, it can be returned to stock should you or a future buyer wish. I'd also recommend using the DOC+DPF as is and waiting until you have a problem before you consider replacing it. One guy here did before and after dyno tests and did not see an improvement in HP from removing the DOC+DPF. Kukje sized it appropriately to not reduce performance.

Good Info Thanks

59ksmall · Mar 12, 2020

tomt574 said:
Yes it sounds logical if only it were that simple. The DP pressure sensors read a DP across the DPF in a known value. There is a DP in the shelf state. Once the DP rises above that shelf state to a determined value set in the ECM it gives an output to go into regen. If there is no DP because you removed the internals I am afraid you will throw a code and end up in limp mode. Now if you could get into the program and disable the ECM I/O for the DPF you could do what you mentioned and that way if someone looked at it everything would appear to still be there.

I don't believe the system on the MX series tractors are that complex. It doesn't look for a min output and just looks for that maximum value. It will run fine without the element. A friend of a friend has done the mod.

tomt574 · Mar 12, 2020

59ksmall said:
I don't believe the system on the MX series tractors are that complex. It doesn't look for a min output and just looks for that maximum value. It will run fine without the element. A friend of a friend has done the mod.

Thats a good thing. Hopefully it will not end up like what we have on automobiles

Godaddy1 · Mar 12, 2020

Just a thought here! Has anyone thought of wrapping the dpf with a exhaust wrap from DEI to keep the filter hotter and maybe cut down on regens and how long it stays in regen?

59ksmall · Mar 12, 2020

Had my friend send me pictures from his friend's MX DPF mod.

Here is the pressure sensor. He pulled the hoses off the sensor and plugged them with small bolts and zip ties. Left the sensor open to the atmosphere.

Diff%20Pressure%20Sensor_zps4v3q8rkv.jpg

Circled in red are the pressure hoses where they mount onto the filter canister.

Here is the ceramic filter media. If you zoom in you can see a checkerboard pattern with every other square closed/solid. He took a large drill bit and drilled many holes in both sides and then punched it out with a hammer and screw driver.