RX7Club.com - Mazda RX7 Forum

2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Need help identifying wires!

Thread Tools
 
Search this Thread
 
Old Oct 3, 2012 | 10:05 PM
Share
  #1  
Logitikes's Avatar
Logitikes
Thread Starter
Senior Member
Tenured Member 10 Years
 
Joined: Sep 2007
Posts: 293
Likes: 2
From: Markham
Need help identifying wires!
OK so my problem is that im not sure if i have the correct wires. my situation right now is that i want to install a hks evc 6 on my 1989 turbo ii. i need two wires. RPM input signal wire, and Throttle Input signal wire. i have a wiring diagram for a 1991 turbo ii, and A) im not sure if its the same as a 1989, and B) im not sure if i have the correct wires. Anyways i looked up in the diagram, connector B2-03 pin 1G with wire colour L/Y should be my rpm input signal wire, and connector B2-23 2G with wire colour B/G should be my throttle input signal wire. My problem with the rpm signal is that should i be splicing into my wire after the igniter at the tach, or should i be splicing it before the igniter near the ecu? My problem with the throttle input signal is that im not sure which one to use. theres a narrow range throttle sensor and full range; I picked the full range one. Ive included pictures of the wiring diagram im using, so if anyone can confirm if i am correct, that would be super awesome! Thanks!!!


Throttle Input Signal?

Name: RPMInputSignal_zps66fb7d49.jpg Views: 156 Size: 98.6 KB
RPM Input Signal?

Name: ConnectorDescription_zps6ae23e75.jpg Views: 164 Size: 105.2 KB
Description of the two connectors
Reply
0
Old Oct 3, 2012 | 10:23 PM
Share
  #2  
misterstyx69's Avatar
misterstyx69
Retired Moderator, RIP
Tenured Member: 20 Years
iTrader: (142)
 
Joined: Sep 2005
Posts: 25,581
Likes: 136
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
you can get RPM off the bullet connector at the trailing coil (yellow,something..green,blue red..sorry brain fart).No splicing req'd.
Reply
0
Old Oct 4, 2012 | 08:44 AM
Share
  #3  
Logitikes's Avatar
Logitikes
Thread Starter
Senior Member
Tenured Member 10 Years
 
Joined: Sep 2007
Posts: 293
Likes: 2
From: Markham
But are the wires i pointed out the correct ones? And is the wiring diagram from 91 the same as 89?
Reply
0
Old Oct 4, 2012 | 09:07 AM
Share
  #4  
MIDNFauciUSN's Avatar
MIDNFauciUSN
Roll FIS green
iTrader: (8)
 
Joined: Mar 2003
Posts: 1,738
Likes: 14
From: Jax, FL
the Y/L wire on the second pic is the Tach (RPM) signal.
Reply
0
Old Oct 4, 2012 | 09:09 AM
Share
  #5  
MIDNFauciUSN's Avatar
MIDNFauciUSN
Roll FIS green
iTrader: (8)
 
Joined: Mar 2003
Posts: 1,738
Likes: 14
From: Jax, FL
Originally Posted by MIDNFauciUSN
the Y/L wire on the second pic is the Tach (RPM) signal.
It is part of the 4 wire harness under the trailing coil... not the 2 wire one.
Reply
0
Old Oct 4, 2012 | 09:25 AM
Share
  #6  
MIDNFauciUSN's Avatar
MIDNFauciUSN
Roll FIS green
iTrader: (8)
 
Joined: Mar 2003
Posts: 1,738
Likes: 14
From: Jax, FL
the B/G wire for you TPS looks right to me.
Reply
0
Old Oct 4, 2012 | 10:45 AM
Share
  #7  
Logitikes's Avatar
Logitikes
Thread Starter
Senior Member
Tenured Member 10 Years
 
Joined: Sep 2007
Posts: 293
Likes: 2
From: Markham
Originally Posted by MIDNFauciUSN
It is part of the 4 wire harness under the trailing coil... not the 2 wire one.
so youre saying i should splice at the connector for the tach?
Reply
0

Trending Topics

Old Oct 4, 2012 | 11:27 AM
Share
  #8  
j9fd3s's Avatar
j9fd3s
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,796
Likes: 3,210
From: https://www2.mazda.com/en/100th/
Originally Posted by Logitikes
so youre saying i should splice at the connector for the tach?
no, if you look at the trailing coil there is a check connector, B2-07 in the diagram, which is just a bullet connector, so all you do is plug into that.

for the TPS that (2G) is the signal wire.
Reply
0
Old Oct 4, 2012 | 01:23 PM
Share
  #9  
MIDNFauciUSN's Avatar
MIDNFauciUSN
Roll FIS green
iTrader: (8)
 
Joined: Mar 2003
Posts: 1,738
Likes: 14
From: Jax, FL
Originally Posted by Logitikes
so youre saying i should splice at the connector for the tach?
Either way will work. I personally dont have the check connector thanks to the previous owner. The important thing is that you hit the correct wire.
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Retrofitting New Window Regulator to Convertibles
toplessFC3Sman
2nd Generation Specific (1986-1992)
6
Mar 20, 2018 01:54 PM
Fuel system help: connector ID
DocHoliday89
3rd Generation Specific (1993-2002)
5
Oct 12, 2015 07:42 PM
how to wire up efan on fc
cosmo7
West RX-7 Forum
2
Sep 14, 2015 09:47 PM
Break hoses for '85 RX7
Frox
General Rotary Tech Support
2
Sep 8, 2015 08:36 AM
Tags
Back to Subforum
2nd Generation Specific (1986-1992)
View Next Unread
Odd electrical issues (with video)




Advanced Search

All times are GMT -5. The time now is 12:18 AM.