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pretty stright ?

Can the 4cyl run fine without the rear O2 functioning?? Whats it main purpose. Mine got yanked out... long story. Problem is i can find the port to plug it back in. I pulled out the plastic an shit out and looked in the area indicated by the FSM but i can find it. Do the locations differ year to year or somethin??
 

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As I understand it, the O2 forces corrections if the MAS screws up and throws codes if something is really messed up. As long as the MAS is working and your fuel mix is correct, I don't think it's too big of an issue, but I'd look into fixing it. The locations might vary by year, so make sure you're looking at the right FSM for your car.
 
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