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Egr & dpf?

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What is gained by removing the EGR & DPF?



Is this done only to alleviate turbo clogging problems, or mainly for fuel mileage, or power upgrades?



What is the effect on emissions, does it now blow smoke in stock form, or with power upgrades?



Now the biggest question, with the present dictatorship will the EPA start mobile check station to fine people for the emission deletes? If these changes cause $25,000 fines from emissions Nazis what have we gained from fighting the man? Oo.
 
Animal,

Your questions go to the heart of the issue.

With everything deleted your engine will probably develop more power and attain better fuel economy but will leave a trail in the ECM which could result in a warranty cancellation if you experience any problems. A deleted truck will probably produce smoke which is a clue to someone who is informed.

The current administration is expected to expand and strengthen the punishment agency's enforcement and will probably force states to comply via threats of withholding federal highway funds. The chances of being caught and having severe penalties imposed is going to increase.

Only you can decide. I decided to leave my truck in OEM condition.
 
Animal;
I will try to answer each of your questions as you have posted them. This is from a layman's point of view and my opinion only.


What is gained by removing the EGR & DPF? For the EGR system some of the exhaust is cooled and then sent back to the engine. With this engine exhaust you will have less fuel burned do to the lack of oxygen in the cylinder to burn the fuel during the compression cycle. But more soot will enter the engine air intake due to the cooled Exhaust gas that is sent to the engine. If the truck is driven in short distance you will have oil changes between 3K and 4K instead of the 7. 5K as advertized, more soot and fuel in oil due to the duty cycle of your driving.
The DPF has no effect on the engine except to burn off soot from the exhaust cycle. What does happen with most active regens take place is to use fuel from you fuel system to burn off the soot when actively regening. Thus lowering your fuel mileage, now if you do a lot of long distance driving the ECM will use more passive regenerations instead of active regening so fuel mileage should not be harmed as much.


Is this done only to alleviate turbo clogging problems, or mainly for fuel mileage, or power upgrades? If you use the exhaust brake all the time than you should not have any turbo issues with or without deleting anything. Most deletes are done to improve fuel mileage and to eliminate harmful soot from entering the engine. You can also increase HP to the engine but some tuners will do this regardless if you are deleted or not.

What is the effect on emissions, does it now blow smoke in stock form, or with power upgrades? I can only speak for the Smarty but I have not seen any smoke on the mild tunes regardless of being deleted or not. I would fail an emission test if tested but my state does not test for diesel emissions.

Now the biggest question, with the present dictatorship will the EPA start mobile check station to fine people for the emission deletes? If these changes cause $25,000 fines from emissions Nazis what have we gained from fighting the man? Oo. That is the $25,000 question but I have not read where that is taking place all though I think Calf would be the first. I am a member of SEMA and I keep looking for post from them on the emission status in the US so far no change in the present policy. I would suggest that if you do delete that you keep the emission equipment for reinstallation if needed in the future.

Jim W.
 
You will not pass the biannual smog inspection in CA if you have removed any of the OEM emission equipment. I am sure the Fed's will be adopting our standards soon.
 
Although I see the benefits of deleting the EGR and DPF in both increased fuel economy and extended Lube Oil service intervals I will be leaving my 2012 CRD stock. I have the extended warranty on my truck and don't want risk voiding it by making unauthorized alterations to the emission system. The risk of being caught and fined by the feds just further makes alterations ill advised. A trusted dodge diesel mechanic I know says it is almost impossible to program a tune on these trucks without leaving some kind of footprint. He also said that Cummins is more concerned about the alterations than RAM, Cummins warranties the engine and they would likely blame any modification, mechanical or programming, for any failure.



I'll try to avoid milk runs with my truck and keep the engine loaded up enough for passive regen.



I also own a VW Jetta TDI and it very rarely goes into active regen. It gets about 36 mpg in real world driving, 45+ on a long highway trip.
 
So do I. I have no idea how often or when it has done an active regen. If trucks have feelings my Dodge is probably resentful of the VW TDI. The truck sits lonesome out in my building while I drive the VW.
 
If you display the Fuel Econ screen on your dash it shows your average MPG and a bar scale for instant MPG when the truck goes into the Re-Gen cycle you'll see the bar graph (instant MPG) drop to almost half your average reading and stay there for as long as 15 to20 min.
 
I haven't had the truck long enough to know what the lube service interval is going to be, the CRD Jetta is a 10K interval and I would be happy with anything over 6K on the Ram. I'll be towing the fifth wheel all spring so hopefully the DPF won't go into many regen cycles.
 
I haven't had the truck long enough to know what the lube service interval is going to be, the CRD Jetta is a 10K interval and I would be happy with anything over 6K on the Ram. I'll be towing the fifth wheel all spring so hopefully the DPF won't go into many regen cycles.

Granted the ECM in the 12 truck maybe program slightly different than my 08 truck was but when I was towing out west in the summer of 08 with my 5er, I was regening between 200 and 225 miles. This worked out to once a tank full of diesel. I was filling up about every 300 miles or so since I was getting around 9 to 10 MPG towing. I knew this by watching my EGT gage raise from 850F or 900F to a max of 1450F for 20 min's or more during the process. On this trip I was able to extend the oil change to 6000 miles from my normal 3500 miles or so.
I also follow the EVIC display as to when to change my oil instead of the owner's manual which stated every 7,500 miles.
Jim W.
 
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