Cat elimination - Page 2 - Ford F150 Forum - Community of Ford Truck Fans

Jan 14, 2009 | 11:39 PM

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#11

Just call me Sean

We'd do it

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Joined: May 2008

Posts: 35,602

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From: Orlando,Fl.

Quote:

Originally Posted by Jamesb53191

if you have an 02 sensor after the cat what would it do if you do the same thing

It would keep the check engine light on all the time, and that's it. It wouldn't affect the way the truck runs or keep it in closed loop, keeping it in closed loop would only increase the emissions. It signals the computer that the cat isn't working to full efficiency and since it's a pollution control device the light stays on.

Quote:

Originally Posted by 8thgenf150fan

Sean,

Do you have the 4.9 or the 5.0/5.8?

I have the 4.9.

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