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

What's an initial set coupler?

Thread Tools
 
Search this Thread
 
Old 01-29-06, 08:40 AM
  #1  
We are the D

Thread Starter
 
InMyWhiteTII's Avatar
 
Join Date: Nov 2005
Location: Indianapolis
Posts: 492
Likes: 0
Received 0 Likes on 0 Posts
What's an initial set coupler?

??
Old 01-29-06, 11:02 AM
  #2  
Stock boost FTW!

iTrader: (22)
 
Project88Turbo's Avatar
 
Join Date: Nov 2004
Location: Berlin, MD
Posts: 1,135
Received 112 Likes on 72 Posts
It's a green plug near the driver headlight and leading coil pack that has two wires. You jumper these terminals to put the computer in "Initial set" mode so you can set timing, idle speed, etc once the car is warmed up.

Vince
Old 01-29-06, 06:40 PM
  #3  
southern style

 
matts86fc3s's Avatar
 
Join Date: Dec 2005
Location: warner robins, georgia
Posts: 436
Likes: 0
Received 0 Likes on 0 Posts
bingo... if you try to do any of that withought jumping the initial set coupler the computer will not read your changes and will not run right. also if you need to prime the fuel system to get air out you can jump the initial set coupler, put hte key in the "on" pisition and the fuel pump will run (s4's only)
Old 01-29-06, 07:03 PM
  #4  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by matts86fc3s
also if you need to prime the fuel system to get air out you can jump the initial set coupler, put hte key in the "on" pisition and the fuel pump will run (s4's only)

This isnt correct.. In order to prime the system you have to use the fuel pump test connector. Its yellow and resides by the pass strut tower.

Rat
Old 02-01-06, 01:36 PM
  #5  
Junior Member

 
dailong's Avatar
 
Join Date: Jul 2005
Location: washington
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by matts86fc3s
bingo... if you try to do any of that withought jumping the initial set coupler the computer will not read your changes and will not run right.
could this be the reason why my timing hasn't been advancing. i changed the BAC, CAS, ECU, and the engine wiring harness. i changed the TPS and adjusted it to specs. There are no error codes but but my timing will not advance. it actually retards. the timing is set to 5* ATDC, lead. btw, i have a 89 gtu n/a.
Old 02-01-06, 02:19 PM
  #6  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
How are you proving this? And no, that check connector being grounded wont lock timing, it only keeps the BAC at a constant cycle so you can adjust your idle.
Old 02-01-06, 02:19 PM
  #7  
HAILERS

 
HAILERS's Avatar
 
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 22 Likes on 20 Posts
Originally Posted by dailong
could this be the reason why my timing hasn't been advancing. i changed the BAC, CAS, ECU, and the engine wiring harness. i changed the TPS and adjusted it to specs. There are no error codes but but my timing will not advance. it actually retards. the timing is set to 5* ATDC, lead. btw, i have a 89 gtu n/a.
Idle the car with a timing light on the pulley. Slowly rev the engine over 1000-1100 rpm. The timing light should show that the timing advanced quite a bit when over 1100 rpm. No need to rev over 1100-1200rpm to see this. Actually the figure is somewhere b/t 1000-1100rpm but I forget the exact figure.
Old 02-01-06, 02:24 PM
  #8  
Junior Member

 
dailong's Avatar
 
Join Date: Jul 2005
Location: washington
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
i have tried that and the timing retards. I know this because standing in front of the car the lead mark on the pulley is going to the right as it revs. As you all kno of course it should be going to the left. what's wrong with my car???
Old 02-01-06, 04:30 PM
  #9  
HAILERS

 
HAILERS's Avatar
 
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 22 Likes on 20 Posts
Got me.

Engine fully hot when you do that?
Old 02-02-06, 08:14 AM
  #10  
Junior Member

 
dailong's Avatar
 
Join Date: Jul 2005
Location: washington
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
yeah, i made sure it was completely wwarm idle before i made any adjustments.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post



Quick Reply: What's an initial set coupler?



All times are GMT -5. The time now is 01:38 PM.