one to 4 wire o2 sensor
11-06-2002, 05:09 PM
#1
Thread Starter
Join Date: Oct 2002
Location: Cedar Rapids, IA, USA
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
one to 4 wire o2 sensor
Can anyone tell me how to convert my one wire o2 sensor to a 4 wire one? Its for a 93 civic. I have a universal bosch 4 wire sensor but i can't figure out how to wire it up. I found a doc on how to do it but the colors are all totally different. any help would be greatly appreciated
11-06-2002, 08:26 PM
#2
Honda-Tech Member
Join Date: Apr 2002
Location: NY, usa
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Re: one to 4 wire o2 sensor (fuzzyhum)
Im doing this conversion next weekend, Ive put it off long enough, and this CEL is killing me. I had a writeup on it, but lost it. Can someone repost it again ? I think it might have been one of StorminMatt's writeups.
Btw, how much did the Bosch unit cost you ?
[Modified by enabi, 5:27 AM 11/7/2002]
Btw, how much did the Bosch unit cost you ?
[Modified by enabi, 5:27 AM 11/7/2002]
11-07-2002, 06:03 AM
#3
Thread Starter
Join Date: Oct 2002
Location: Cedar Rapids, IA, USA
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Re: one to 4 wire o2 sensor (enabi)
yeah the CEL is killin me too. the bosch unit cost me like 65 bucks. if anyone has that write up please post. i have 2 heater circuit wires, 1 signal wire, and a ground wire.
11-07-2002, 03:34 PM
#4
Thread Starter
Join Date: Oct 2002
Location: Cedar Rapids, IA, USA
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Re: one to 4 wire o2 sensor (fuzzyhum)
anybody want to help me out? its a cx engine harness going into a jdm d15b. i have a universal bosch o2 with 2 heater wires, 1 signal wire, and 1 ground wire.
11-08-2002, 11:06 AM
#7
Senior Member
Re: one to 4 wire o2 sensor (raene)
Are you using a P28 ecu?
one wire o2 sensor is a white wire and goes directly to D14 on a P28 ecu.
for converting to 4 wire o2 sensor, you will need to keep this wire, and add the following:
Grn/Wht wire - spliced into the GRN-WHT wire which is the Idle Air Temp Sensor, wchich also goes to D22 on the ECU.
Yel/Blk wire - Splice into Yel/Blck wire at the firewall.
Org/Blk wire - goes to A6 on P28 ECU which is the Heat Control
HTH
one wire o2 sensor is a white wire and goes directly to D14 on a P28 ecu.
for converting to 4 wire o2 sensor, you will need to keep this wire, and add the following:
Grn/Wht wire - spliced into the GRN-WHT wire which is the Idle Air Temp Sensor, wchich also goes to D22 on the ECU.
Yel/Blk wire - Splice into Yel/Blck wire at the firewall.
Org/Blk wire - goes to A6 on P28 ECU which is the Heat Control
HTH
Trending Topics
11-08-2002, 11:24 AM
#8
Thread Starter
Join Date: Oct 2002
Location: Cedar Rapids, IA, USA
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Re: one to 4 wire o2 sensor (poison)
hey thanks....i'll try that. atleast it is a start. yes i'm using a p28 ecu. but i kept getting a code 41 so i figure i need a 4 wire o2. thanks though.
11-08-2002, 11:31 AM
#9
Thread Starter
Join Date: Oct 2002
Location: Cedar Rapids, IA, USA
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Re: one to 4 wire o2 sensor (poison)
i do have a universal one so i am assuming my signal wire from o2 goes to the white wire d14. i have two heater wires. does one go to the orange black wire and yel black? i'm not sure cuz i have a ground wire too... so where does the ground go to?
11-08-2002, 11:59 AM
#10
Senior Member
Re: one to 4 wire o2 sensor (fuzzyhum)
you will only need to use 1 heater control wire.
you have extra wires on that universal o2 sensor.
as for ground, i'd suggest splicing that to the yel/black
you have extra wires on that universal o2 sensor.
as for ground, i'd suggest splicing that to the yel/black
11-10-2002, 10:51 PM
#12
Honda-Tech Member
iTrader: (1)
Join Date: Jul 2002
Location: Everywhere you want to be
Posts: 1,388
Likes: 0
Received 2 Likes
on
2 Posts
Re: one to 4 wire o2 sensor (fuzzyhum)
anybody want to help me out? its a cx engine harness going into a jdm d15b. i have a universal bosch o2 with 2 heater wires, 1 signal wire, and 1 ground wire.
Are you getting any other codes like 10 and 14?
[Modified by Touch, 2:53 AM 11/11/2002]
11-11-2002, 05:16 AM
#13
Thread Starter
Join Date: Oct 2002
Location: Cedar Rapids, IA, USA
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Re: one to 4 wire o2 sensor (Touch)
Yes my vtec is working. I swapped in my jdm d15b and used my existing cx harness and plugged everything in. I ran vtec wires straight to my ecu and it seems to kick in fine but you don't notice it much. And now my o2 is working as well. I used Kenji's article and wired them straight up to the ecu as well. No more codes. it works fine now.
Thread
Thread Starter
Forum
Replies
Last Post
slammedz6ef
Honda CRX / EF Civic (1988 - 1991)
5
02-15-2008 07:46 AM
civicmatt
Honda Civic / Del Sol (1992 - 2000)
1
06-22-2003 07:27 PM
