I am using the stock dx harness with my p2t ecu has the concersion harness. Does it use one or two o2 sensors? If so what are the wire colors of the plug i have two o2 plugs.

 

You'll need 2 if you run obd2.

 

Will i have to drill a hole on my manifold?

 

Should have one in the manifold and one after the cat.

 

MY manifold doesnt have one... :\ I heard b16a2's only has 1 o2 sensor?

 

Ohh... i dont have a cat so i guess thats why my 2nd o2 sensor location isnt there. Is there a way i can just tap the other wires into one plug? Can someone tell me the color also for the primary o2 sensor plug on a dx hatchback wire harness?

 

how is it gonna read the second o2 sensor if it isn't there? they can't have the same reading or it will throw a code for catalyst.

 

B16a2's are OBD2, it WILL have 2.

If you don't have it, and don't want to drill your only option is run obd1.

 

isnt there one before & after the cat? i agree with 98 civdx though, drill or run obd1

 

OBD1 is one sensor.
OBD2 is two senors.
If you don't have a spot to mount it have a shop weld in an O2 bung pre-cat and post cat.

 

I have one sensor right below the manifold and the other sensor isn't connected it's right after the manifold and I dont have a cat . What should I do ? Could I just insert a bung ?