Ford Mustang Forum - View Single Post - Air/fuel ratio spiking in a new Mustang, sometimes losing power.
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post #10 of (permalink) Old 02-04-2013
Oyyci's Avatar
Joined: Jul 2012
Location: Williamsport
Posts: 112
I don't know if it helps you too entirely much but I watch mine out of curiosity all the time. Mine goes to 20:1 when there is no load and I am coasting in gear. I have no issues however, if I tap the throttle even the slightest, it drops back to normal.

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