problems starting & need some #'s from FSM

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alright guys... i've had some problems with my car and need any input y'all might have, along with some #'s from the FSM.

i've had my check engine light on, giving me the MAF sensor code. so i went out and got a new MAF. unfortunately, my new MAF seemed to make things worse. it felt like my car was running on 3 cylinders, so i put the old one back in. my car has a stalling problem and i'm running excessively rich. i'm thinking it might be a problem with the wires or whatever, so i want to test those out. i'm talking about the wires that plug into the MAF sensor. can anyone tell me if the FSM has any of the #'s that are supposed to be read using a multimeter?

now, for my other problem... my car has a hard time starting. when i crank my car up (even by pressing the gas pedal down) my car seems to not be able to start. it's not my spark plugs or plug wires, because i tested all those out and they spark perfectly. it's not a fuel problem cuz i can hear the fuel being pumped in. every cylinder is getting fuel cuz i can see it come in. when i tried to crank it up again today, it still did not work. i took out my spark plugs and they were pretty much covered with fuel. so i'm getting a spark and fuel, but it's not starting. so what could be wrong? not enough air??

thanks for any help guys