Ford Mustang Forum - View Single Post - Air fuel ratio bouncing after header install
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post #2 of (permalink) Old 02-16-2016
crjackson2134
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Quote:
Originally Posted by Clean14 View Post
Ever since I had these JBA Headers and off road X pipe installed on a 2014 Mustang GT 5.0, my air fuel ratio has been swinging from 12-16. Rear O2's have been deleted, new MAF sensor, and everything else WE knew to look for. Here is a link to the video showing how bad it swings... Please help!

https://youtu.be/p3PS9f_KIgI
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Sounds like more tuning might be needed. Just a guess...



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