engine light was on I installed new camshaft position sensor, upper intake on 2002 Ford Windstar

gasket set, new wires and plugs, and erg my light has stayed off great except when I get around 30-40 mph it still feels like its missing but when I give it gas it runs smooth and and stopps missing could it be fuel problem? Transmission is smooth and shift into all gears properly but in town around 30-40 miles it feels like missing

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1 answer 2 comments
IS THERE A CK ENG LIGHT ON
check engine light was off for approx. 89 miles and then it came back on it use to come on after all repairs about 5-10 miles check engine light is back on now
HAVE THE CODES CK 1ST THING AND THEN GO FORWARD