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Q:

hesitates then surges,,sucking up the gasoline on 1994 Mazda B4000

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
after repalcing whole clutch system, it now doesn't run right..have replaced the cat converter & fuel pump & regulator, map/maf, co2 sensors, cleand fuel injectors,new fuel filter air filter, tune up, still doesnt run right, no rough idle, seems fine until over 25mph then hesitates and given gas it surges, speedometer goes up & down over 55, the shop gave it back to me they cant find the problem it is using alot of gas,,please help..oh and NO it wont throw any codes ??? HELP !!!
(1) Answer
when did it start? right after clutch replacement? possible vacuum leak or wires got pinched in the bellhousing when clutch was done..also may want to check timing belt..