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Thread: i have a question

  1. 03-26-2008 #1
    Josh Hapka
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    i have a question

    how do u turn off an egr for a 3800 series 2 v6? it is in a 2002 camaro.
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  2. 03-26-2008 #2
    Russ K
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    Go to Engine > General > EGR > Min IAT & set to 284*F.
    Also set all EGR codes to no error reported.

    Russ Kemp
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  3. 03-26-2008 #3
    shoafster
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    Whats the benefit of turning off the EGR?
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  4. 03-28-2008 #4
    louvered97gtp
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    Disabling EGR allows more air since the exhaust gasses reintroduced by the EGR's operation usually displace the oxygen allowed. This means more fresh air and less carbon buildup in your intake.
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  5. 03-28-2008 #5
    Perforator
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    You will probably also see a slight decrease in fuel efficiency.
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  6. 03-28-2008 #6
    BlackGS
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    ^^ x2. About 1-2mpg lost. I disabled the EGR so that the carbon would not clog up the intercooler.

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  7. 03-29-2008 #7
    bigbrian442
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    You will also see part throttle KR during highway speeds.
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  8. 03-29-2008 #8
    Russ K
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    Quote Originally Posted by bigbrian442
    You will also see part throttle KR during highway speeds.
    No, once the EGR is disabled, the EGR spark table isn't used. But if you just unplugged the EGR, then there will be part throttle KR.
    Just like a carburetor vehicle when the EGR vacuum hose was capped off, or the EGR passage was blocked with carbon.

    Russ Kemp
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  9. 03-29-2008 #9
    Perforator
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    Quote Originally Posted by Russ K
    No, once the EGR is disabled, the EGR spark table isn't used.
    Do the V6's have a EGR spark table? I know it's not mapped...
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  10. 03-31-2008 #10
    bigbrian442
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    Quote Originally Posted by Russ K
    No, once the EGR is disabled, the EGR spark table isn't used. But if you just unplugged the EGR, then there will be part throttle KR.
    Just like a carburetor vehicle when the EGR vacuum hose was capped off, or the EGR passage was blocked with carbon.

    Russ Kemp


    I see no EGR spark table in my 98 V6 F body tune. Is it there and just not shown? I also don't see a way to disable the EGR, other then deleting the DTC's for it.
    Last edited by bigbrian442; 03-31-2008 at 04:17 AM.
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  11. 03-31-2008 #11
    Russ K
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    This is how to disable the EGR. And the EGR spark table is not included on the V6 car's.

    Russ Kemp
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  12. 03-31-2008 #12
    bigbrian442
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    With the absence of the EGR spark table on the V6 cars, Will disabling the EGR cause part throttle KR, with out tuning for it?
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  13. 03-31-2008 #13
    Russ K
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    Quote Originally Posted by bigbrian442
    With the absence of the EGR spark table on the V6 cars, Will disabling the EGR cause part throttle KR, with out tuning for it?
    Read post #8

    Russ Kemp
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