I have an issue with my o2 sensor on my OBD 1 95 JDM D15B Vtech Del Sol. I recently had the check engine light come on and the code came back as 1 the 02 sensor so i replaced it and the check engine light does not clear i have no clue on what to do i disconnected the battery no luck, i removed the back up fuse and ECU no luck the light still on and i changed the o2 sensor twice just in case it was faulty and still no luck i recently installed a after-market exhaust and i installed the o2 sensor on the header and still no ****ing luck !!!!!
Does any 1 have a clue on what the **** is up with this ****....Please advice !!

 

Did you check for another code?

 

[QUOTE=mcvtec;44768690]Did you check for another code?



Yes i did and i still get code 1 (O2 Sensor )

 

What ECU are you using?

 

Did you get the CEL before you installed the new exhaust?

 

I'am using a P28
92-95 Honda Civic Ex/SI / Del Sol SI

 

The Cel was in the car before the install...i tried everything so far like removing the ECU/CEL 15a Fuse the bacck up one and the hazard fuse i disconnected the battery for 1 day and still...i'am very frustrated

 

I hav the same problem here same Engine and Same ECU i still having the cel 41 and i replace the o2 sensor i got a new Denso 234-4099 o2 sensor and still having problems with cel.. help please!!

 

I had what I thought was a code for O2 also. Turns out it was not code for 02 but was the code for Air Intake Temperature Sensor. What I thought was code 1, short blink, was code 10, long blink. Swapped out my IAT and no more code. I spent money on replacing the O2 sensor plus my time troubleshooting after for what I thought was a bad O2 circuit.

 

Not sure what O2 cade u have but those O2 sensors have a heated element, if the code is heater circuit malfunction then you should check the O2 sensor heater curcuit fuse, i think its a 10A
I would check there next, then fallow the wires back to the O2 sensor, make sure there a no breaks in the wires

 

Thank You All For You Info And For taking The Time To Gide Me In The Right Direction I Replaced The IAT Sensor And The Check Engine Light Is Finally Off. Thanks Eddie70