99 ek dx hatch secondary o2 location
06-11-2008, 02:14 AM
#1
Junior Member
Thread Starter
Join Date: Apr 2004
Location: nj
Posts: 659
Likes: 0
Received 0 Likes
on
0 Posts
99 ek dx hatch secondary o2 location
feel stupid asking but i cannot find the sencondary o2 plug on my car. i am used to the plug being above the cat in the body. i have a 99 dx hatch with ctr motor using a extended ctr harness. wondering if anyone can help me out and point me in the right direction.
06-11-2008, 11:56 AM
#3
Honda-Tech Member
Join Date: May 2007
Posts: 91
Likes: 0
Received 0 Likes
on
0 Posts
Re: 99 ek dx hatch secondary o2 location (kgibson16)
the secondary o2 sensor should be under the car right after the cat if you have a CTR or any engine that doesn't have the stupid cat attached to the header.
06-19-2008, 01:16 PM
#6
Former Moderator
Re: 99 ek dx hatch secondary o2 location (kgibson16)
The stock location for your Civic DX 2nd o2 plug is in the area towards the bottom of where your header is, or where the bottom of the factory Dx exhaust manifold/convertor is.
The factory location for the CTR 2nd o2 plug is actually under the passenger seat, and you can access from under the car by pulling the rubber grommet on the o2 wiring through the floor board.
So bascially the locations are in totally opposite areas on a DX vs. CTR.
What engine harness are you running?
*EDIT*
Looks like you have a CTR engine harness, which basically means that since the 2nd o2 plug is located on the chassis harness of a CTR then you do not even have a 2nd o2 plug now.
You will basically have to make one from scratch and route it however you want to.
The factory location for the CTR 2nd o2 plug is actually under the passenger seat, and you can access from under the car by pulling the rubber grommet on the o2 wiring through the floor board.
So bascially the locations are in totally opposite areas on a DX vs. CTR.
What engine harness are you running?
*EDIT*
Looks like you have a CTR engine harness, which basically means that since the 2nd o2 plug is located on the chassis harness of a CTR then you do not even have a 2nd o2 plug now.
You will basically have to make one from scratch and route it however you want to.
Trending Topics
06-19-2008, 02:39 PM
#8
Junior Member
Thread Starter
Join Date: Apr 2004
Location: nj
Posts: 659
Likes: 0
Received 0 Likes
on
0 Posts
Re: 99 ek dx hatch secondary o2 location (kgibson16)
ok wireing it theres 4 wires, 2 black 1 white and 1 green. white i know goes to the ecu, the 2 blacks are heaters and need a 12v source, but i have no clue where the green one goes.
06-19-2008, 07:03 PM
#9
Former Moderator
Re: 99 ek dx hatch secondary o2 location (B18C5-EH2)
Update:
In my haste to reply while at work I was likening the CTR chassis to the Si/EX that we have here in the US, but in fact the CTR doesn't even use a 2nd o2 sensor at all so that's the obvious answer as to why you lack a plug for one.
As far as wire colors go, I'll be back tomorow after I can look through a service manual for wire colors, pins, etc.
Modified by B18C5-EH2 at 11:08 PM 6/19/2008
In my haste to reply while at work I was likening the CTR chassis to the Si/EX that we have here in the US, but in fact the CTR doesn't even use a 2nd o2 sensor at all so that's the obvious answer as to why you lack a plug for one.
As far as wire colors go, I'll be back tomorow after I can look through a service manual for wire colors, pins, etc.
Modified by B18C5-EH2 at 11:08 PM 6/19/2008
07-13-2008, 12:12 PM
#16
Honda-Tech Member
Join Date: Jul 2008
Location: CHI CITY, il, USA
Posts: 1,237
Likes: 0
Received 0 Likes
on
0 Posts
its a 99 lx 4 door and it has a b16a2 now and i used the stock b16 harness and the b16 ecu the car runs but has a code and i cant reg smog test every one told me that it but the shift i took it all apart carpet and nothing please help
07-14-2008, 12:36 PM
#18
Junior Member
Thread Starter
Join Date: Apr 2004
Location: nj
Posts: 659
Likes: 0
Received 0 Likes
on
0 Posts
Re: (dokdok)
so your using a jdm b16 swap and a 2000 si ecu? if so it def wont work cause of the crank sensor the si ecu looks for. let me know if your using a usdm or jdm ecu
07-15-2008, 06:20 AM
#19
Honda-Tech Member
Join Date: Jul 2008
Location: CHI CITY, il, USA
Posts: 1,237
Likes: 0
Received 0 Likes
on
0 Posts
its oem b16a2 off a 1999-00 civic si and i used the wiring that came with the engine and ecu the problem is that the SI come with a sub harness for the 2nd 02 and my car does not have it wht i am wondering is do you know how to spice the 2nd o2 straight in to the ecu thanks man
07-15-2008, 01:33 PM
#20
Junior Member
Thread Starter
Join Date: Apr 2004
Location: nj
Posts: 659
Likes: 0
Received 0 Likes
on
0 Posts
Re: (dokdok)
1-white- A23 (secondary 02 signal)
2-green-C18 (ground) 3-black-B1 (ignition power 12v) 4-black- A8 (secondary 02 heater)
clip
[1][2] thats looking down at your 02 connector
[3][4]
this should be it let me know if it doesn't work. #3 doesnt have to be b1 it can be any 12v source.
2-green-C18 (ground) 3-black-B1 (ignition power 12v) 4-black- A8 (secondary 02 heater)
clip
[1][2] thats looking down at your 02 connector
[3][4]
this should be it let me know if it doesn't work. #3 doesnt have to be b1 it can be any 12v source.
07-15-2008, 01:43 PM
#21
Junior Member
Thread Starter
Join Date: Apr 2004
Location: nj
Posts: 659
Likes: 0
Received 0 Likes
on
0 Posts
Re: (kgibson16)
and if u dont know which connectors are A B or C, theres 4 slots on ecu 4th is empty thats D so to the left of D is C and so on. the the pins go left to right like for instance the A connector go's
1,2,3,4,5,6,7,8,9,10,11
12,13,14,15,16,17,18,19,20,21,22,23,24
25,26,27,28,29,30,31,32
i am sure u get the idea
1,2,3,4,5,6,7,8,9,10,11
12,13,14,15,16,17,18,19,20,21,22,23,24
25,26,27,28,29,30,31,32
i am sure u get the idea
07-16-2008, 09:00 AM
#24
Honda-Tech Member
Join Date: Jul 2008
Location: CHI CITY, il, USA
Posts: 1,237
Likes: 0
Received 0 Likes
on
0 Posts
ya for sure man sorry i did get back to you but my 5 post were up lol
CHRIS thanks for the help man my names tony ya but when ever you come out man ill show you around here for sure dude is there any way to tell the blacks apart or just try them
CHRIS thanks for the help man my names tony ya but when ever you come out man ill show you around here for sure dude is there any way to tell the blacks apart or just try them