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Posted on Jan 02, 2017
SOURCE: maf?/ missfiring
have the map sensor checked to see if it is within range you say you have codes maf make sure all clamped duct work is tight and not loose clamps .iac motor clean bore if the pintle gets stuck will cause rough idle hesitation even no start conditions scan tools only test the idle air control valve motor not the bore that extends to block varnish gets built up on the pintle and in the bore wich binds the in and out operation
Posted on Sep 12, 2008
Im surprised that didn't fix it. On the Quad4 engine its usually a cracked coil housing.
Have you checked:
Posted on Oct 15, 2008
Is the spark plug wet when you remove it, if not check fuel injector, also while you have spark plug out do a cylinder compression test.
Posted on Jan 11, 2010
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