GalantVR4.org The Mitsubishi Galant VR-4 Forum
Galant VR-4 Forums » Galant VR-4 » Technical Discussions » Starter/ECU/MPI wiring
Previous thread Next thread

Starter/ECU/MPI wiring


CarRacer
Giant Sack of Ginger
83/2000


Galant VR-4 org Post #: 1179262 posted 07/06/14 06:07 PM     Remind Me!  Send Private Message   Edit Post      
I'm wiring up my motor swap project and it's been years since I figured this all out for the Chevette. I forgot how it was wired up and I'm reaching a dead end in my googling so I'm hoping you guys can help.




I'm trying to figure out what pin 110 and 108 are. I'm pretty sure I run 102 to switched 12v and 13 to constant 12v, I completely forget what 108 and 110 got wired to in the Chevette.


Edited to add: Discovered Pin 2 on my MPI relay and Pin 10 on the MPI relay were cut and have non-factory wire connectors on them in this harness. Where should these wires go in the factory configuration? The best answer I found is that Pin 10 gets constant 12v power and Pin 2 triggers the fuel pump. I'm not sure if Pin 2 should go to the rewire relay or what though.



James
83/2000

Missed Shift | Auto News


Edited by CarRacer (07/06/14 06:11 PM)

Posts: 4370 | From: Shakopee, MN | Member Since: 06/28/07 | IP: (2600:1014:b00d:c) | Report this post to a Moderator

Spyke169
Member +


Galant VR-4 org Post #: 1179283 posted 07/06/14 09:32 PM     Remind Me!  Send Private Message   Edit Post      


If you have a factory service manual, it is on page 8-73 of the 90-91 Volume 2 Electrical.

Posts: 324 | From: Greenfield, Wi | Member Since: 08/17/05 | IP: (72.128.101.206) | Report this post to a Moderator

CarRacer
Giant Sack of Ginger
83/2000


Galant VR-4 org Post #: 1179287 posted 07/06/14 09:46 PM     Remind Me!  Send Private Message   Edit Post      
I saw that but I don't read schematics very well and all I got out of it is that one wire is involved with the fuel pump and the other is involved with power. I wasn't able to determine where the wires should actually go.

Your link is helpful, I'm not just able to utilize it.



James
83/2000

Missed Shift | Auto News

Posts: 4370 | From: Shakopee, MN | Member Since: 06/28/07 | IP: (75.73.133.56) | Report this post to a Moderator

Spyke169
Member +


Galant VR-4 org Post #: 1179296 posted 07/06/14 11:19 PM     Remind Me!  Send Private Message   Edit Post      
How about this, click ?



'90 Galant GSX, Daily Driver
'93 TSI AWD, Project Car
Sold the VR4s that I have owned, miss them everyday.

Posts: 324 | From: Greenfield, Wi | Member Since: 08/17/05 | IP: (72.128.101.206) | Report this post to a Moderator

CarRacer
Giant Sack of Ginger
83/2000


Galant VR-4 org Post #: 1179309 posted 07/07/14 07:31 AM     Remind Me!  Send Private Message   Edit Post      
Yeah, that was the best post explaining things. I'm starting to remember how I had it wired, I believe one is my fuel pump signal that I ran to there wire relay. The other wire I'm just going to run to constant 12v, pretty sure that'll be correct.



James
83/2000

Missed Shift | Auto News

Posts: 4370 | From: Shakopee, MN | Member Since: 06/28/07 | IP: (75.73.133.56) | Report this post to a Moderator

GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1179438 posted 07/07/14 09:54 PM     Remind Me!  Send Private Message   Edit Post      
Make sure the wire on pin 108 is connected somewhere between the starter relay and the MPI control relay on pin 9. The ECU should see 12v on pin 108 when the key is turned to the start position (when cranking).
on

Pin 110 goes to the ignition switch. Looking at the diagram, it looks like it connects in at the 6 pin connector (C-59). I believe it would be your 12v constant when the ignition is in the run position. I'd guess that connector would normally be under the dash, but I'm not sure. I can't seem to find a locator anywhere in the manual.

Both of these wires should run directly from the ECU to their respective places in the harness, as outlined above.



820/1000
1837/2000
1546/2000-SOLD
1813/2000-SOLD

Posts: 3376 | From: SoCal | Member Since: 01/02/12 | IP:
(72.45.2.251) | Report this post to a Moderator

CarRacer
Giant Sack of Ginger
83/2000


Galant VR-4 org Post #: 1179558 posted 07/08/14 06:04 PM     Remind Me!  Send Private Message   Edit Post   
Okay, sweet. The key position/wire power state information was super helpful. The problem is that I won't be connecting the wires to a factory harness, so simply tracing the wires on the diagram didn't get me very far.



James
83/2000

Missed Shift | Auto News

Posts: 4370 | From: Shakopee, MN | Member Since: 06/28/07 | IP: (70.197.192.60) | Report this post to a Moderator


Pages: 1
Previous thread Next thread

Extra information
0 registered and 30 anonymous users are browsing this forum.

Galant VR4.org Moderator:  curtis, steve, atc250r, jcgalntvr4-244, cheekychimp, jepherz, Rausch, toybreaker, iceman69510, pot, FlyingEagle 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 1635

Rate this thread


News & Events: News | Events
Galant VR-4: Newbies | General VR4 Discussions | Technical Discussions | How To and Info Archive
Marketplace: Parts For Sale | Cars For Sale | Good Guys | Bad Guys
Community: Members' Showcase

Contact Us | Privacy statement GalantVR-4.org

Generated in 0.112 seconds in which 0.092 seconds were spent on a total of 14 queries. Turbo powered.


Hertz's Galant VR-4 Page