Hi i have a 2001 ford focus zx3 with the 2-litre zetec engine. The
engine has a bad surge in it when at constant road speed or when
accellerating. This surge can be made much better by plugging the
vacum line going to the egr. The car has been checked for vacum leaks.
had an exhaust replaced and fuel sendr replaced. I have had it to
several mechanics that are unable to determine the problem. The car
also seems to run rich one mechanic told me the long term fuel trim
was at 18 and the car performs very sluggishly. Any advice would be
very much appreicated.
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