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Discussion Starter · #1 ·
i had to cut my cats out and staight pipe. cats had backed up and cracked the heads and block. i put a new motor in and it drained the bank. now my millage has gone to nothing i have lost over 100 miles to a tank. is there a cheep fix to getting my milage back other than putting the cats back in. if anyone could help me that would be great
 

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2013 F-150 XLT 4WD with 5L
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1,775 Posts
I wonder if the PCM is adjusting itself because of the 02 readings pre- and post-cat.
 

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Discussion Starter · #3 ·
i can tell that it is running rich. the smell of fule is over powering out side the truck. is there a programer out that is fully ajustable so i can program the air/fule mix
 
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