ok, well i found the problem for blowing my alt fuse, secondary o2 sensor, ok well i cut out the junk part of the wiring, now my quiestion is there are 4 wires 2 blk, 1 whi, 1 grn, are the 2 black both grounds, im not sure witch goes to witch or if it doesnt matter, i forgot to mark wen i cut apart...but they are both grounds arent they?

 

The two black wires are power (from fuse 15) and ground for the heater element of the O2 sensor.

 

hw do i figure out witch is witch?? im sure if i solder them together wrong if be in a same spot, blowing that damn fuse, 20 fuses later

 

The black wire that changes to a blk/yel wire after the connector is the power wire.

The black wire that changes to a blk/wht wire after the connector is the one that grounds on the ECU.