EGR/DPF Delete - Page 4
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Thread: EGR/DPF Delete

  1. #31
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    Quote Originally Posted by dieselboy731 View Post
    Has anyone unplugged the EGR in 1.6l diesel?
    I did, as an experiment.

    I have friends with some Cummins pickups in the 2007-2012 range. Their choices of emissions tinkering include some unplugging EGR and just living with a constant CEL that is a "soft" malfunction, I.E., it doesn't affect functioning of the vehicle.

    My unplugging of the EGR resulted in an immediate CEL when I started the car and a warning message that I was 75 miles away from reduced function of the engine (limited to 65 mph top speed). I assume that if I go past that it will drop to 55 mph, and then down to the 4 mph speed limit that results when you run out of DEF. It's a "hard" malfunction in that it impedes functioning of the vehicle.

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  3. #32
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    Quote Originally Posted by Barry Allen View Post
    I did, as an experiment.

    I have friends with some Cummins pickups in the 2007-2012 range. Their choices of emissions tinkering include some unplugging EGR and just living with a constant CEL that is a "soft" malfunction, I.E., it doesn't affect functioning of the vehicle.

    My unplugging of the EGR resulted in an immediate CEL when I started the car and a warning message that I was 75 miles away from reduced function of the engine (limited to 65 mph top speed). I assume that if I go past that it will drop to 55 mph, and then down to the 4 mph speed limit that results when you run out of DEF. It's a "hard" malfunction in that it impedes functioning of the vehicle.

    That's what will happen with any newer diesel. It's mandated by the feds that the engine will derate with most emissions malfunctions.

    100% because of the federal emissions laws. 0% because it'll hurt the engine.
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  4. #33
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    I emailed and received response that Oz Tuner has done the necessary deletes but are working on a security method...So basically they would rather develop something and keep it from the market than release it and have people copy there work.

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  6. #34
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    At least you got a response, my inquiry about a month ago was never addressed... Glad to hear there is something in the works though, being that the production of our cars was halted. I'm coming up on the end of my power-train, eager to modify once I get there!

  7. #35
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    Would it be better to add a catch-can in through the EGR on the GEN2 Diesel?

  8. #36
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    Quote Originally Posted by //oilburner View Post
    Would it be better to add a catch-can in through the EGR on the GEN2 Diesel?
    Nope.

  9. #37
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    ford_powerstroke_2003 Diesel EGR.pngFor my education, what is the issue (system function, failures, resulting impact) with the EGR circuit in the GEN2 Diesel.
    Last edited by //oilburner; 05-31-2019 at 12:33 PM.

  10. #38
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    Quote Originally Posted by //oilburner View Post
    ford_powerstroke_2003 Diesel EGR.pngFor my education, what is the issue (system function, failures, resulting impact) with the EGR circuit in the GEN2 Diesel.
    You sir are not allowed to ask those questions!!!
    2015 Chevy Cruze CTD 120K (DEF Tank Replaced)
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  11. #39
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    Quote Originally Posted by //oilburner View Post
    ford_powerstroke_2003 Diesel EGR.pngFor my education, what is the issue (system function, failures, resulting impact) with the EGR circuit in the GEN2 Diesel.
    The issue? Regarding my recommendation to not install a catch can on it?
    The issue is that it's exhaust gas....It's fairly hot. Besides any temp related concerns it's also a fairly complex arrangement and not conducive to installing one, additionally a catch can isn't going to trap exhaust particulate matter, so I don't see the point.

  12. #40
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    I apologize about not being verbose enough - my rephrased question is - What is it about the Chevrolet GEN2 Diesel's EGR system that causes it to fail or cause other issues? Could an improvement (perhaps from another Diesel system made by another manufacturer) improve upon Chevrolet's design to prevent or prolong the EGR issue?

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