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(po306 only)rough idle after warmed up,good accelaration & off idle preformance

(1996 Ford Aerostar)
in Flagstaff, AZ on June 02, 2013
new plugs,wire's,coil pack,02 sensor,isc motor.good compression vacuum steady at 18 motor has valve train noise after warmed up changed rocker arms & push rods on #4,#5,#6 head motor runs & sounds 50% better code po306 came back after one day.the motor dose not over heat no back firing motor will spin the tires.Question will the code po306 set if cylinder #2 is miss firing since coil pack fires both cylinder #2 & #6 at the same time
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Popular Answer
on June 03, 2013
IF it runs rough only at idle and compression is good on all cylinders, recheck for a vacuum leak, may need to smoke test the vac. circuit to find. (2 has nothing to do with 6)
of Greg's Orange Auto on June 03, 2013
misfire #6 cyl have it diag as to save time and money
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