[67 chop top]

i checked maf sensor and cleaned it with carb. cleaner. it was also time for oil change so i done that and changed fuel filter. while i was working on truck i tried to find a vacuum leak none found. when i checked the fuel tank purge solenoid valves i was not holding vacuum like i thought it should soo i plugged the line going to the solenoid closest to manifold and miss went away and so far hasnt come back. i did get a code to come up about tank purge i then moved plug out to canister to see if valves are bad or vacuum lines are problem. so far its run good for 2 days.