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Engineering/Technical Ask technical questions about cars. Do you know how a car engine works? |
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05-30-2015, 05:20 PM | #1 | |
AF Newbie
Join Date: May 2015
Location: Newmarket
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Removing Cats, O2 Sensors?
Currently own a 1999 Audi A4. Having many exhaust problems due to rusting out. Bad sound.
I am going to straight pipe right to the muffler, removing the two catalytic converters. What do I do with the two O2 sensors? Let the, hang, or cut them off? Will this greatly affect gas mileage? I am not concerned about passing emissions. Thanks, Zach |
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05-30-2015, 08:02 PM | #2 | |
A990 racer
Join Date: Mar 2002
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Re: Removing Cats, O2 Sensors?
You cannot run any PCM controlled engine without the O2 sensors.
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05-31-2015, 10:23 AM | #3 | |
SHO No Mo
Join Date: Jun 2004
Location: Cedar Rapids, Iowa
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Re: Removing Cats, O2 Sensors?
And if your A4 has the turbo 1.8L, you really don't want to run without O2 sensors since having an incorrect Air/Fuel ratio on a turbo car can cause expensive engine issues in a hurry.
-Rod |
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