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My EGR solution

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Offline S.Sidekick

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Re: My EGR solution
« Reply #15 on: May 28, 2008, 08:27:02 PM »
Correct me if im wrong.. doesnt the EGR valve control emissions?  the check engine light is on and the EGR code pops up, so mine must be clogged as well.  What is the benifit of fixing this? Better gas mpg? Hp?      I dont have a clue

The egr helps gas mileage to.  i went to pass emission and the light was on so i unplugged my battery cleared the code took the test and passed so dont worry about emmisions.  it puts exhasut gases back into the intake then uses them reducing gas consumtion.  before my EGR went out i was getting 31mpg wit 30's and since then im down to 24.4 and that was messured today.  NO DIfFERENT DRIVEING STYLE EITHER.  The guys at puyallup suzuki said it wont hurt anything to have it out except gas mileage and maybe power.

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Offline Jookycola

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Re: My EGR solution
« Reply #16 on: May 28, 2008, 09:36:53 PM »
I have a fully functional EGR system,  I replaced the broken parts and Dusty Badlands secured me an EGR regulator like the one pictured.  My problem is i need someone with a shop manual to tell me what tubes hook up to what between the actual EGR and the EGR regulator on my 16V Cal Em. motor.
  [/url]

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Offline whitfield

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Re: My EGR solution
« Reply #17 on: May 29, 2008, 12:18:29 PM »
hey well i might have come up with a way to fix my Egr problem for good.  i bought a use lower intake from a friend and there is a small freeze plug in the front on the Egr pipe i cam up with the idea of drilling that plug out and tapping a stud in it  my idea is that when the egr pipe gets clogged like they all do i can undo the plug and egr and push the carbon through.  ill put picks up but tell me what you think.

I like the ideia, but why is your EGR pluging up so quick?  Are you burning oil?  You should not have that much carbon in the EGR stream.  Generally the plugging comes from the cooling and condensing of the EGR gasses dropping the carbon deposit / build up.   That is why the build up occures at the intake port, because it is cooler.


WoW this post contains soo much bad information....   Where do I start???

The EGR by function recirculates exhaust gas (inert) into the intake at preset driving conditions.  This reduces combustion temperatures.  It is the extreemly high combustion temps that create the bad emissions.  The EGR in good working condition doesn't have much relation to fuel milage or performance.  A plugged EGR shouldn't have much effect on milage or performance either.  The Computer seeing the EGR fail the MAP test and setting the check engine light, thus kicking the EFI into open loop or limp mode is what kills MPG and performance.   

An EGR hung partially open or leaking on the intake side (thus supplying an unmetered vacuum leak at all throttle positions) could cause a loss of performance and reduced efficency. 

Otherwise the EGR doesn;t control or even function at idle.   I have actually driven around with a vacuum guage taped to my windshield and T'ed into my EGR.   Here you can learn when the EGR actually functions.

« Last Edit: May 29, 2008, 12:25:23 PM by whitfield »
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Offline Rhinoman

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Re: My EGR solution
« Reply #18 on: May 30, 2008, 10:40:25 AM »
The EGR does not operate at low loads/low rpms or at high load/high rpms. There is a small improvement in efficiency when it does operate because the additional gasses introduced into the cylinders increase cylinder pressure and improve combustion. There is no reason for the ECU to adopt either open loop or limp mode if the EGR alone is defective but it will retard timing to prevent pre-ignition caused by higher combustion temperatures.
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Offline cj

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Re: My EGR solution
« Reply #19 on: May 30, 2008, 01:02:43 PM »
I was reading this the other day and found it quite interesting http://www.autospeed.com/cms/A_110577/article.html

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Offline wildgoody

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Re: My EGR solution
« Reply #20 on: May 30, 2008, 05:21:40 PM »
The EGR reduces NOX emissions, by slowing down the combustion in the cylinder
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