why is my 2001 focus se only getting 18mpg . it has the Zetec dohc /auto
Is it very cold where you live? If so that is most likely the cause, too cold and the control systems never really reach full operational temps. If not then when was it's last good tune up, plugs, filters etc. Next thing to do if a tune wasn't it would be to have the vehicle "live data" scanned, a tech could see if all of the sensors were sending the proper signals to the ECM at any given time while in operation.
Thank you for your response Actually I have done all those ideas I guess I'll try the live data
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