i need wiring info for the mass air flow sensor pig tail. on 1997 Kia Sephia

i have idling issues. code po120. however i notice two of the wires, leading to pig tail,of MAS connector, have been spliced. connector has five wires in all. the two that im concern about are black with yellow stripes. i cant tell if who ever spliced into them hooked them together right. idk why they would splice two ground leads into them anyways. how can i figer which gos where

by in Seattle, WA on August 25, 2013
1 answer
ANSWER by on August 25, 2013
Does it have (or ever had) an aftermarket (chrome) intake tube installed, ie K&N? If so, that is most likely the reason for the spliced wires! Are they going to a small box mounted near the MAF, or where do the extra wires go to?