94 grand prix question

Hi all.. im stumped here.. i cannot find any information on the computer system on this grand prix 3.1.. what im trying to figure out is whether its a MAF system or a speed density system. ive done a lil info hunting around the net and everyone seems to have different answers. so far ive seen 3 places that sell MAF sensors for this motor. however, im pretty sure ive seen a few pics of what the MAF sensor looks like on this motor and mine just doesnt have one.. so whats the deal with that? should it be a MAF system? ive heard that in 94 GM switched back to MAF systems. i also heard that they have both MAF and MAP sensors on them starting in 94.. can anyone enlighten me?

thanks in advance

It has a map no maf.located back of intake plum infrount of coil packs.engine proble will poor black smoke out exhaust if bad.

ok so since it has a MAP and no MAF that means its a speed density system right?

Speed Density is Map.