SO i have a 92 civic with D15z1 motor and watched the check light and found it was the 02 sensor. I got a new one it have 5 wires and the light still comes on?? Any ideas? Also have another question about if their should be a 2nd 02 sensor befour the car? i replaced the one in the header and my buddy was saying that it only has on 02 sensor? But need some advice with anyones help.

 

http://www.hondaautomotiveparts.com/...EXHAUST+SYSTEM

I don't see a second O2 sensor in that system. You can check to see if the one in the manifold is shown.

 

when you changed the o2 sensor.. did you reset the ecu..?? if not.. the ecu still has that cel stored.. disconnect your negative battery terminal for a few minutes.. then connect.. see if that works..

 

yea i disconnected the battery but only for a few seconds and its the one in the header. what about the fuse i pulled that one to. the 7.5 and came on?

 

its a 92 civic ex with the D15z1 motor. when i bought the car my buddy holloed the car out and was to loud and didnt sound good but i got a new cat for it and has a spot for a 02 sensor but not sure if their is a harnis for it? or how that works.

 

needs to be longer than a few seconds.. yea the spare fuse will work too.. but battery is easiest..

 

and its a after market exhasut if that makes a difference???

 

ok cool cool i am running out side now to cheack it out sucks its been raining all day.

 

what code is it throwing.. what number..??

 

48 HEATED OXYGEN SENSOR tried unpluging the battery didnt work not sure whats going on?

 

what eles is involved with heated oxygen sensor? not sure what the heated part of the 02 senor is? i have a manual for the car that i bought at pep boys. Would or is their anything eles that gos or works with the 02 sensor? any help would be really cool just trying to learn a lil and sucks with the light on all the time.

 

Is the O2 sensor you got a universal type or is it from OEM?

Also, from experience, you need to disconnect the fuse/negative battery cable for more than a few minutes even though it says to do it for 10 seconds in the service manual.

 

check all engine bay grounds

 

i havent cheacked the engine grounds that a good idea. and the 02 sensor is a univerisal i think, the brand is walker.

 

Universal O2 sensors don't work too well with Hondas. It's best if you get an OEM replacement.

 

oh yea really that sucks then cause i went to all dealerships and they were like 400 to 500 bucks.

 

bosch works decent i purchased one for 86 bucks from autozone... the heater on the o2 sensor is to bring the sensor to operating temps when its cold...

 

I tried a bosch universal on my 92 civic and it didn't work. I didn't measure the voltage at the time but the check engine light didn't go away after I reset the ECU. I've also heard other people having similar problems.

 

yea not sure what to do it runs good i checked all the grounds, pulled fuses and battery and still on

 

what ecu are you runing and how meny wires on the o2

 

the thing about universal O2 sensors is the connector. Usually you have to make a splice. Your new connectors are prolly very poor conductors and have alot of resistance causing the O2 code. Try buying some new connectors, not the cheapo butt connectors. Also, make sure you wired it up correctly. Im not sure why you have 5 wires, most uni O2 ive seen only have 4. The heated O2 sensors have a heating element in them to allow for them to give a more accurate reading.

 

its the stock ecu for the motor and the 02 sensor has 5 wires

 

its also a d15z1 VX motor if that helps with my problem? yea i just unpluged it from the header and the other conector and pluged the new one in.

 

if it is a universal O2 sensor, it shouldn't have a connector... you should need to cut wires and splice them... Otherwise you bought an oem replacement for your vx, and your car might not be liking it.

 

Run to a junkyard and get a used one, OEM ones are really expensive