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My 92 s15 jimmy 4x4 misses and laggs during acceleration

I have a problem with my s15 taking off it stumbles and pops every once in a wyle during take off.also when im stoped at a stop light it serge's and almost seems like it wants to stall on me.it also stalls sometimes.so plzz help cant figure it out.i replaced all fuel injection system,and all spark wires an distributor,also idle sensor and everything else besides the egr and pcv valve.pllzzz help thnkzz.

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Hello I have a 94 GMC s15 Jimmy it sputters on take off then at fiftymph it snaps back to life very bad smell of gas out of exhaust replaced plugs cap rotor fuel pressure regulator tempsens tps spider


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