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Post cat fuel trim lean
Posted to Technical Discussion Forum on 2/11/2020 27 Replies

Hey TDF,

I've got this Fiesta in my bay, that is coding for rear trim lean. upstream A/F sensor is reading around -300ma and rear O2 is pretty much at .9v steady (will drop lean for a bit on decel so I think I can trust my sensor readings), fuel trims are +/... Login to read more.

27 Replies Received (View Replies)

 

car Vehicle Data

2014 Ford Fiesta SE 1.6L

VIN 3FADP4BJ7E
Engine1.6 L
Trans6-speed Automatic (Electronic)

car Vehicle Data

2014 Ford Fiesta SE 1.6L

VIN 3FADP4BJ7E
Engine1.6 L
Trans6-speed Automatic (Electronic)