Yeah yeah I know it's illegal to remove the cat and all but let's be realistic. Quite a few people here have already done it. Any idea how hard it will be to remove the DPF? I'm sure it would prompt the ECM to throw codes but I'm sure that could be over come by custom programming. Thoughts?

Nick

there must be some senders or something in the DPF....ohm it out and rig something up to fool it?? :confuzeld: :idea:

Looks like a job for Fingers!

Yeah yeah I know it's illegal to remove the cat and all but let's be realistic. Quite a few people here have already done it. Any idea how hard it will be to remove the DPF? I'm sure it would prompt the ECM to throw codes but I'm sure that could be over come by custom programming. Thoughts?

Nick

Hey Nick,

You have a customer that is inquiring, or are you thinkin' about a new truck? I am sure that someone here at DP ( like Fingers ) will come up with something.

I'm thinking of a new truck. I'm keeping my '01 but just can't resist the new model lol.

Whats the DPF?

Just bear in mind that it may not be as simple as a certain resistance on a sensor here and there. If a computer algorithm is used, the electronics may EXPECT a change in the resistances based on any number of variables. I bet it isn't very easy to fool if someone did their job correctly.

I beg to differ.. Bring on all the algorithms :D We'll fool them !

I would imagine it will sense a differential pressure and call for the heater once a certain delta pressure was attained. If the Delta never occurred, then no problem.

Looks like a job for Fingers!






:exactly:

I would need a victim truck, er ah, example truck to work with. My early reading on the matter indicates the particulate filter isn't wired directly. However, darn near everything else is. So yea, life is about to become a little more interesting. I love a challenge.

Just bear in mind that it may not be as simple as a certain resistance on a sensor here and there. If a computer algorithm is used, the electronics may EXPECT a change in the resistances based on any number of variables. I bet it isn't very easy to fool if someone did their job correctly.

Though it seems the engineers are out to thwart us at times, I can assure you their only intent is to get the blasted thing to work.

Though it seems the engineers are out to thwart us at times, I can assure you their only intent is to get the blasted thing to work.

Exactly...Which explains why sometimes things are far more complicated than they have to be also.

Word is, EGT and O2 sensing along with 100k replacement intervals.

I'm waiting for the 07.5 rather than the Classic. It was a tough decision, but I think it will be better business strategy to have the "pollution junk" to deal with...

I sense a victim. :)

Whats the DPF?

Diesel Particulate Filter.

Scott

Word is, EGT and O2 sensing along with 100k replacement intervals.

I'm waiting for the 07.5 rather than the Classic. It was a tough decision, but I think it will be better business strategy to have the "pollution junk" to deal with...



Thats true Kennedy, because if the future of diesels will be dealing with particulate filters and such; as a person who deals with them on a daily basis, (such as yourself) you should be able to have the knowldege on products for the new diesles.

No matter what, there will be people out there making aftermarket equipment for the new trucks. Anyone who wants to stay in the aftermarket diesel business, wheather its products for GM, Ford, or Dodge, is going to have to purchase all the new 2007 trucks and deal with all new emmissions head on.

I will definately be getting a new GMC 2007 LMM Duramax. First thing I will do is look for aftermarket performance products.

:driver:


http://img170.imageshack.us/img170/5123/0720sierrahd2oa3.jpg (http://imageshack.us)


http://img170.imageshack.us/img170/8837/0720sierrahd10ef8.jpg (http://imageshack.us)

Hey Joe,

Did you take those pics? Could i use the lower one for may avatar pic? please please please?? :)

Now I just have to figure out how to swallow those fugly chrome bumper corners on the Chevy...

Easy - Get a GMC... I think you're due for a color change, too.

Easy - Get a GMC... I think you're due for a color change, too.

:exactly: X2!! Get a Red one!!

Now I just have to figure out how to swallow those fugly chrome bumper corners on the Chevy...
I think the whole thing painted black is :cool2: , but agree the chrome is fugly:exactly: .

Hey Joe,

Did you take those pics? Could i use the lower one for may avatar pic? please please please?? :)


Haha- Yes you can.
Actually I didnt take those pictures.
You are more than welcome to use it as your avatar though.
I found the pictures on a website which is from the State Texas Fair.

Heres the link:

http://www.cobraeater.cz28.com/StateFairofTexas/

You will find many more pictures on that website like the ones I've posted.
2007's are GREAT LOOKIN Trucks!!!

:thumb:

I would imagine it will sense a differential pressure and call for the heater once a certain delta pressure was attained. If the Delta never occurred, then no problem.
Not that simple....it also watches time/miles when the last cleaning took place....at least on European cars with DPF.

I think in CA, with the 07.5's, you will have to smog them every 2 years......might not want to remove the cat, imo

Seems like you could use a fairly simple circuit to simulate all the functions that the sensors do. Main problem will be figuring out what all conditions the computer is looking for and simulating each of them occuring every so often

Diesel Particulate Filter.

Scott


OR

DAM POLITICIANS FCensored with my truck

OR

DAM POLITICIANS FCensored with my truck

Good one, I'll have to remember that.

Scott

Easy - Get a GMC... I think you're due for a color change, too.

Yeah, but my local dealer is Chevrolet and that's a relationship I don't want to change. They help me in many ways w/o question...

I haven't even seen the color options. I like the Sandstone or dk green, but Classic Crews weren't available in these colors. We'll see on the new ones...

It will take a lot to fool the ECM do to all the factors to regen.
Our trucks that our running heavy loads and long trips regen on there own at Milage intervials according to conditions given. The diesel engine has stepped more colser to Gas as far as emissions. Any injector missfire or (erosion) we see the DPF catching more fuel. and you can melt a filter.
so power adders alone will not cut it.
unloaded and iding alot forces our engines to go into manual regen.
driver pulls over and activates regen. takes about 45 min.
Temps have alot to do with it as well.
the ECM has to see Temps and psi across the dpf. along with coolant temp and throttle actuation, EGR to much to explain.
Our DDC programing is so smart I think it will be very hard to full proof an aftermarket program.
I think we will not see many people removing the DPF.
We run our commin rail engine with doseing turned off and straight piped.
but to turn off the dosing requires disconecting the dag for the DPF.
It will be fun to watch

Hmmm, a challenge.

:D

Yeah, but my local dealer is Chevrolet and that's a relationship I don't want to change. They help me in many ways w/o question...

I haven't even seen the color options. I like the Sandstone or dk green, but Classic Crews weren't available in these colors. We'll see on the new ones... most dealers can get either , i too have always prefered the chev, but this time the gmc definately has the better lookin front end :ro)

DPF = diesel particulate filter

Yeah, but my local dealer is Chevrolet and that's a relationship I don't want to change. They help me in many ways w/o question...

I haven't even seen the color options. I like the Sandstone or dk green, but Classic Crews weren't available in these colors. We'll see on the new ones...


It won't matter. In less than a year there will be after market bumpers for the new trucks. My thinking is there will be many too chose from as demand for them will be abnormally high thanks to GM's crack concept/design team.