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Discussion Starter #1
Hi everyone. I'm just looking for your opinions on going to Ford and getting them to update my PCM. I have a 2009 Focus, and when I drive my sister's 2010 Focus, the throttle is so much more sensitive. I would assume it's because of how much and how fast the PCM opens the throttle body when pressing the throttle.

Do you think that there could be a newer update for my car's PCM that would maybe improve the throttle response, and maybe even other things like fuel economy and transmission.
 
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