the O2 sensor in my Ypipe is in there but has no wires coming out of it, i need to replace this but i dunno where to run the wires. please help the car is runnin like crap...pics would be great

 

The wires are definitely there somewhere .... where is the O2 located on the Y ..... passenger's side .. driver' side?

Thomas.

 

driver side

 

The wire for the front O2 is located up behind the drivers side valve cover .... the wire for the rear O2 is located on the passenger's side of the block right above the starter (the passenger's side rear O2 wire is near the tranni mount).

Thomas.

 

Isn't there two o2's on the front and two on the back.....

 

Yes .... there are 4 O2s in total:

front & rear driver's side O2s
front & rear passenger's side O2s

Thomas.

 

So thats for both of the o2's....

 

No, it is for the driver's side front O2. The passenger's side front O2's wire is located on the passenger's side, somewhere around the rear of the passenger's side valve cover.