93 sc400 bogging plz helpp
 

I have a 93 sc400 was running good ...sat for a couple months ok lets get to the point

Idles perfect revs out perfect changed fuel filter, plugs, wires, cap, rotors, coils and ignighters MAF all brand new...

Only in drive the car chokes at around 2800 rpm literally chokes out full or half throttle and when i let off of the gas the car idles normally

If i continue to give it gas as it chokes.... it backfires and jerks one time every 2 seconds at least....

Sometimes it revs out in drive normally but back up and try it again it starts choking


IM LOST....new maf still getting code 31!! bad ground? need new tpe or iac or fuel pump or ecu? any help would be great before i lose my mind.... maybe somethings is shaking causing to lose contact where are the ground located for the maf that my main code....:confused: fuel pump ecu was already bypassed also :uh:

Help me bfore i beat the hell out of this car :golf: hahah no joke:egads:

none :(.............