Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

y7 to y8 questions

 
Old 05-20-2019, 01:38 PM
  #1  
Honda-Tech Member
Thread Starter
 
Join Date: Dec 2012
Posts: 7
Default y7 to y8 questions

ok so i have a 97 civic dx hatchback w/d16y7
donor car 96 civic ex sedan

took the y7 out and installed the y8 how do i wire the 02 sensor?
i have a brake light(on the dash) on until i hit the brakes
sloanavery is offline  
Old 05-20-2019, 09:41 PM
  #2  
Honda-Tech Member
 
muellersfan's Avatar
 
Join Date: Apr 2018
Posts: 976
Default Re: y7 to y8 questions

Originally Posted by sloanavery View Post
i have a brake light(on the dash) on until i hit the brakes
Low brake fluid in reservoir?

how do i wire the 02 sensor?
Are you asking how to lengthen the four wires?
muellersfan is offline  
Old 05-21-2019, 07:20 AM
  #3  
Honda-Tech Member
Thread Starter
 
Join Date: Dec 2012
Posts: 7
Default Re: y7 to y8 questions

I checked the brake fluid. i has to be something to do with the brake switch, or going from I cant put the car in gear without something stuck in the release by the shifter.

as far as the 02 sensors the y7 had the cat on the header so the second 02 sensor was right by the transmission. both were in the engine harness. the y8 out of the 96 had one 02 sensor by the header and one close to the shifter, that one is connected to the dash harness, so on my car side i dont have that plug. its not about extending wires at this point, i just dont have the plug.
sloanavery is offline  
Old 05-21-2019, 03:55 PM
  #4  
Honda-Tech Member
 
muellersfan's Avatar
 
Join Date: Apr 2018
Posts: 976
Default Re: y7 to y8 questions

Originally Posted by sloanavery View Post
its not about extending wires at this point, i just dont have the plug.
The donor car had a Y8 with a secondary O2 sensor. The header on your old Y7 had a secondary O2 sensor. Your current engine has the mate connector for either of the latter O2 sensor plugs. What am I missing?
muellersfan is offline  
Old 05-21-2019, 04:58 PM
  #5  
Seagull Management
 
94EG8's Avatar
 
Join Date: Jun 2008
Location: Miramichi, NB, Canada
Posts: 15,144
Default Re: y7 to y8 questions

Originally Posted by muellersfan View Post
What am I missing?
Using an EX engine harness in a CX/DX/LX will leave you with no secondary O2 sensor plug as it is part of the cabin harness on the EX.

You have 2 options:
  1. manually add the missing 4 wires and pin them into the appropriate locations using a wiring diagram for a '96 EX
  2. Use the EX cabin harness, it will plug in and you can swap all the power options from the EX over if you want to this way
94EG8 is offline  
Old 05-21-2019, 05:15 PM
  #6  
Honda-Tech Member
 
muellersfan's Avatar
 
Join Date: Apr 2018
Posts: 976
Default Re: y7 to y8 questions

Originally Posted by 94EG8 View Post
  1. manually add the missing 4 wires and pin them into the appropriate locations using a wiring diagram for a '96 EX
Haha...The thread comes full circle. This^ is basically the earlier mentioned wire extension solution (and easiest solution) requiring a couple of the original Y7 ECU connector wire pins and the original Y7 O2 sensor plug with its attached wires. Comprende?

Last edited by muellersfan; 05-21-2019 at 05:39 PM.
muellersfan is offline  
Old 05-22-2019, 06:34 AM
  #7  
Honda-Tech Member
Thread Starter
 
Join Date: Dec 2012
Posts: 7
Default Re: y7 to y8 questions

thank you guys for all the help.
sloanavery is offline  

Thread Tools
Search this Thread

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: