1999 Chevy Tracker 2.0 Suzuki 4x4. On the back side of the intake manifold there are wires that go to the MDP and/or MAP sensor these wires snap on to the sensor and from the additional group of wires they snap on to the EGR valve electrical connector but what I have in addition are two eyelets that are among the same group of wires. Approximately in among the same length. The first eyelet has a black wire with yellow stripe also a black wire with orange or pink stripe. The second eyelet has a side by side wire crimp the first crimp contains two wires both are black with blue stripe. The other crimp has a single wire black with green stripe. Both eyelets have power with the ignition on. But I do not know what they are for or where to hook them up?

 

From the description you gave they are grounds,blk&org are coil grounds,blk and yellow are insturment,ac,fuel sender and speed sensor grounds,blk and green are pc ground rear of head.blk&org and blk yellow ground on intake manifold. I reccomend a EWD before working with wiring harness.
Good luck