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ORY and O2 ?

This is a discussion on ORY and O2 ? within the External Engine forums, part of the LSx Technical Help Section category; Ok, here is a silly newbie question. If i go with an ORY I need O2 sims, my guess is ...

  1. #1
    Senior Member kool-aide's Avatar
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    ORY and O2 ?

    Ok, here is a silly newbie question. If i go with an ORY I need O2 sims, my guess is the two after the cat. How does this affect the fuel mix and MPGs?

    my A4 is bad enough on MPGs, would O2 sims make it worse?

    I want to save the money by not having a catted Y. If it is going to suck more gas then i would rather get a nice hi flo catted Y.

    Is the 24" extensions long enough for the front O2s with LTHs?

    If I went catted Y do I need 36" extenders?

    Can you still buy O2 sims?

    thanks

    kool-aide

  2. #2
    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
    01 SS

    The rear 02's only tell the computer that your cats are working and doing what they are suppose to. You can either purchase sims or you have them deleted. Having them deleted is more of a permanent fix. Although sims will work. The sims will be for the rear two sensors.
    If your getting lt's then you will need two wiring extensions, atleast 12", i got the 24" and thats more than enough wire.
    It will run a lil rich until you have it tunned but not any worse than now.
    J
    2001 SS, Its not the car its the Driver that matters....

  3. #3
    Senior Member kool-aide's Avatar
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    thanks for the info

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    Formulatastic yellowv's Avatar
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    Red
    98 Formula /93 Z28

    I have been running mine with no simms and the SES light on for around 15,000 miles now. My gas mileage or performance hasn't suffered at all. It runs a little rich but I get 27-28 on the highway. Of course I have an M6 though. Your gas mileage won't change.

  5. #5
    Senior Member kool-aide's Avatar
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    cool, thanks

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