Mechanics

WHAT CAUSES A HIGH IDLE IN SE

2001 Ford Focus

I just had timing belt replaced on the car when I get the car back it has a very high idle sounds terrible the mechanic states it is my air intake sensor it never idle before now my engine light is on I just had the dpfe sensor replaced all the plugs spark plug wires egr valve battery transmission everything what else do I need to get replaced to the idle will not be so high on the car please help
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Joyfran
October 9, 2007.



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