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#31
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I want to do the same thing Old South did. Disabling the EGR.
Not sure I understood everything said here. Could anyone here explain more in details what Oldsouth did ? Thanks very much.
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1992 300SD, 290K miles. |
#32
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Quote:
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#33
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Emissions in Texas
I'm curious as to how he goes thru emissions in Texas with that setup. Modifying the emission system in any way is illegal here in AZ and the car, because of it's age would have to be tested annually. Do they not do emissions tests in Texas? Maybe I need to relocate.
- Peter.
__________________
2021 Chevrolet Spark Formerly... 2000 GMC Sonoma 1981 240D 4spd stick. 347000 miles. Deceased Feb 14 2021 2002 Kia Rio. Worst crap on four wheels 1981 240D 4spd stick. 389000 miles. 1984 123 200 1979 116 280S 1972 Cadillac Sedan DeVille 1971 108 280S |
#34
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I am in Louisiana and no we do not have emissions testing. One question, when they do an emissions test how long is the test and do they run the car on a roller or what. Actually with the egr disabled you get less soot and smoke than with it enabled. I think just the nox goes up.
And no, my car does not have a check engine light to light up.
__________________
1995 S-350 370K + SOLD 1952 220B Cabriolet 39K kilometers + SOLD 1998 E300D 310K + 2012 E350 BlueTec 120K |
#35
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In California, Smog check isn't required for Diesel cars.
__________________
1992 300SD, 290K miles. |
#36
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Oldsouth,
So you have people redone the tubo for you, correct ? How do you install this Dawes device ?
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1992 300SD, 290K miles. |
#37
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Emissions in AZ
Oldsouth. Lucky you are. Here in Phoenix diesels are required to be tested yearly. They run all cars that are tested at various speeds on treadmills for about a minute at a time. Diesels they apparently only test for particulate levels, but they also check for any tampering with the original emissions equipment. Thus disabling the EGR is not allowed. Also they test the pressurization of the fuel system (on gassers, not sure about diesels) which often results in you having to replace gas cap, reseal the tank, and replace the fuel lines. Found that out the hard way with an 82 Buick. Phoenix is the worst place in the country for emissions requirments. All cars from five years old back to 1967 are required to be tested before renewal tags will be issued.
- Peter.
__________________
2021 Chevrolet Spark Formerly... 2000 GMC Sonoma 1981 240D 4spd stick. 347000 miles. Deceased Feb 14 2021 2002 Kia Rio. Worst crap on four wheels 1981 240D 4spd stick. 389000 miles. 1984 123 200 1979 116 280S 1972 Cadillac Sedan DeVille 1971 108 280S |
#38
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Running with WVO or Biodiesel
My goal for long term would be to run my car with WVO or biodiesel. So disabling EGR makes a lot of sense.
__________________
1992 300SD, 290K miles. |
#39
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It was kind of an accident the way it all came about. My turbo went out and I sent it to Garrett to have it fixed. They also replaced the wastegate control in the process and put a pressure operated one on instead of the vacuum operated (most wastegates are pressure operated). When I got it back and installed it, naturally it would not work right. I discovered what they had done and decided to try to go around the computer and hook it directly to the intake manifold. Worked great! I had previously disabled and then had to hook back up the EGR and knew that the computer would cut boost because it can tell the EGR has been disabled by the mass airflow meter at the air filter. Now there was nothing that could cut boost so I disabled the EGR again. You can replace the wastegate controller without removing the turbo. It is just tight.
The Dawes device is just an easy way to adjust boost pressure. You can do it by the wastegate controller but it is hard to get to and takes several runs to get it right. The Dawes device just goes inline between the turbo and the intake manifold. Simple. It also lets boost build strong up to the set point without any gradual bleedoff like the wastegate controller does. You just need to set the wastegate controller pretty much wide open. The Dawes device has instructions on this. As far as emissions, if all they check is particulate; you could pass that with the EGR disabled. And you can disable it with a plate between the EGR and the manifold and they would never notice. Leave the vacuum hose on it.
__________________
1995 S-350 370K + SOLD 1952 220B Cabriolet 39K kilometers + SOLD 1998 E300D 310K + 2012 E350 BlueTec 120K |
#40
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So the computer only has control of the turbo? Are there are no fuel controls on the injection pump for it to cut?
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#41
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Quote:
None whatsoever.
__________________
1995 S-350 370K + SOLD 1952 220B Cabriolet 39K kilometers + SOLD 1998 E300D 310K + 2012 E350 BlueTec 120K |
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