ok so i have a b18b1 with p75ecu in my hatch and its throwin an o2 sensor code... the problem my harness dosent have a plug for the freakin o2 sensor. so im wondering if i can just run it straight to the ecu?? and if i can does anyone have a diagram i cant find the wires for it in the service manuel.

 

ttt

 

What Trim and YEAR is this Hatch?????????????(If you want help, Give us the appropriate info) What do you mean theres no O2 Sensor plug? Do you mean by that that the wires are there but someone cut the plug off or you saying the harness completely has no wires for the sensor?

 

95 dx hatch, harness has no plug or anyspots cut in it were the plug goes

 

Did you swap the LS in yourself or was it in there when you bought the car? Whoever swapped it in should have either used the Stock DX Engine Harness or the LS Engine Harness..BOTH of which will be wired for the O2 Sensor. I "Think" the 95 DX would have already been wired with a 4 wire O2 as well so if you used the DX Harness over the LS..the only thing you would of had to do was cut the plug off the DX harness and Lengthen the wires and re-solder(or crimp if you prefer)the clip as the LS O2 Sensor plugs in on the Header just before the Cat where as the DX engines O2 was on the top half of the Manifold.

 

i did the swap myself i used the b1 harness and in the serice manuel it shows were the plug is supposed to be but my harness dosent have it so im thinking its not the right harness for the motor but what honda engine dosent use a o2 plug??

 

To me thats werid as hell. Since I don't claim to know things that I don't know about I can't offer any insight on this anymore with where it stands at this point. Hopefully someone else will respond and help out.

A.)So you can figure this out with your car..and
B.)So I can learn something

 

still would like an answer or if anyone knew how to run the o2 straight to the cpu....