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Cat efficiency question
Posted to Technical Theory Forum on 8/23/2017 24 Replies

Hi Y'all

I have a 2011 Ford Fiesta coming in next week for a cat code. Freeze frame data showed the fault at 24 mph and rpm at 1600.

I took the car for a quick test and it passes at 96% at cruise and hard acceleration. It never drops below 86% until the ca... Login to read more.

24 Replies Received (View Replies)