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If the post cat lambda probe has been turned off in my map...

Discussion in 'A3/S3 Forum (8L Chassis)' started by S3 Paul, May 16, 2012.

  1. S3 Paul
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    S3 Paul Well-Known Member Regional Rep

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    [May 16, 2012]
    My car is using CustomCode phase 3 mapping which has the post cat lambda turned off ( cat bypass fitted ) ive got a AFR gauge fitted and the wideband sensor for that is fitted just before the post cat lambda...
    The question is ... if the sensor is "turned off" in the map does it still need to be plugged in?
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  3. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [May 16, 2012]
    Normally all thats turned off on post cat lambda is diagnostics... removing it completely is a little more involved mapping wise and isn't something that tends to get done...

    You have to turn off the probe ageing param, heater diagnosis and a few other constants I can't think of off hand...

    Just as easy to leave it plugged in mate tbh...

    <tuffty/>
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  4. beachbuggy
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    beachbuggy Well-Known Member

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    [May 16, 2012]

    I turned mine off completely, it's not plugged in and no errors come up. Just running the front lambda . If you don't get all the variables and constants then it needs to be plugged in to stop throwing errors. It's easily enough done.
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