question ..what is the difference in the mass air flow sensor in and 87 4runner 22re and an 85 celica gts 22re...i think the one in my 87 4runner is bad and i have and extra one from my 85 gts. they look the same but the part numbers are diff... 4runner one is MF20082 and gts is MF20000...same question with the tps...also diff part numbers....appreciate any help