so im new here i have a 95 maxima with just over 200k on it. I replaced the ignition coils, plugs cleaned the iac valve replaced the maf sensor and housing all was running well . But today i tryed to start it and it will turn over all day but will not start i can smell gas and hear the fuel pump turn on . any ideas???? The only code showing is knock sensor. before i replaced the maf i had a code for to rich or to lean. any info is appreciated.
thanks mike

 

You can smell gas because you flooded the engine from all that cranking. No doubt you're oil is contaminated with gas now. Change your oil if it's high on the dip stick and/or smells like gas really bad. As far as your starting issue have you checked your crank and cam position sensors? Download the FSM and follow the procedures to test those two components. Try putting your old MAF back in and see if it will start. Have you even checked for spark yet, that would be a good place to start.