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Originally Posted by newfdude
yes i replaced with new plugs she has coil on plug system i checked for vacuum leaks with carb spray and propane no leaks found then i unpluged one coil at at a time in the front of the engine only one made a change it was #5 the other no change in engine also no codes found in ecm at all a also cleaned mass air flow senser drove on hiway drives good lots of power only runs bad at idle missing please help thanks
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HOW DID YOU CHECK FOR VACUUM LEAKS WITH CARB SPRAY AND PROPANE? WHAT'S THE PROCEDURE? tHANKS