Alternator emissions

Asked by Megabluffer May 18, 2019 at 10:06 PM about the 2005 Ford Focus ZX4 SE

Question type: Maintenance & Repair

I have a 2005 Ford Focus 2.0 L. I just bought an alternator for it and noticed that
it's CA emissions. The alternator in the car is federal. Will the new alternator
work?

2 Answers
130

the answered 4 years ago

, in a system capable of controlling the voltage of the alternator, referring to such an alternator as “smart” hereafter, it would be possible to optimize its efficiency as a function of the vehicle/engine working points. This system requires first and foremost a communication protocol between the alternator and engine control unit, and a special sensor

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