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  1. #1
    Established Member Two Rings
    Join Date
    Feb 09 2008
    AZ Member #
    25064
    Location
    Cedar Rapida, IA

    Questions about testing O2 with Vag-com!!

    Hey Guys,
    I was trying to diagnose if i have bad precats with vag-com. I am looking at Bank 34-36. 34 and 35 are for each of the O2 precats, while 36 reads the voltage. I am getting about .5 to .6 volts at both the O2s. My question is how to use banks 34 to 35. I was reading somewhere that i am suppose to keep the car at steady RPM of 1800-2200 for a minute and the TESTING OFF should switch to OK and show weather the o2 is ok or not. I kept my car at that RPM ofr a minute and it still kept saying TESTING OFF. Am i doing anything wrong? Any help with be much appreicated, since i need to find out why i am getting such low miles.

    Thanks
    99.5 2.8quattro 5-speed
    -- SpeedTunning Chip
    -- S4 Seats
    -- Stock Sports Suspension

  2. #2
    Established Member Two Rings
    Join Date
    Feb 09 2008
    AZ Member #
    25064
    Location
    Cedar Rapida, IA

    Re: Questions about testing O2 with Vag-com!!

    No one used those banks to test O2s before?
    99.5 2.8quattro 5-speed
    -- SpeedTunning Chip
    -- S4 Seats
    -- Stock Sports Suspension

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