catalytic converter on 2005 Ford Taurus

If replaced catalytic converter thats shot with straight pipe what preformance will happen ? Will only sensors be messed up or engine also? ford 2005 Taurus,will engine or code default compesate for sensor code?

Asked by for the 2005 Ford Taurus
Not exactly sure, but it will have a big effect on the signals from the rear oxygen sensor, which will change the fuel mixture, set a check engine light and make it run very inefficiently. You will be emitting more pollution into the air and modifying the vehicle in such a way as to actually make it worth less.
Really not a good decision.
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