my 2003 sentra 1.8 idles normally some and then other.times wants to stall out. on 2003 Nissan Sentra

my 2003 sentra 1.8 idles normally sometimes and then other times wants to stall out. runs good when excelerating. i have changes plugs twice, replace a coil wire packet for #1 cylinder at the advice of machanic (he performed dianostic test) don't know what code he received. shakes at stop lights and has to put in park. another machanic advised changing the trottle body.

by in Corbin, KY on April 08, 2013
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1 answer
ANSWER by , April 09, 2013
clean mas air flow sensor or check fuel pressure regulator