ascMcLaren Enthusiasts Forum Index ascMcLaren Enthusiasts
An asc McLaren forum for ALL Mustang and Capri based cars modified by Automotive Speciality Corporation, a Division of American Sunroof Corporation.
(a trademarked corporation) with no affilation to this site.
 
 AlbumAlbum   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Fuel pump relay location

 
Post new topic   Reply to topic    ascMcLaren Enthusiasts Forum Index -> It's your call.
View previous topic :: View next topic  
Author Message
oldguy



Joined: 20 Jul 2016
Posts: 4
Location: nola

PostPosted: Wed Jul 20, 2016 8:22 pm    Post subject: Fuel pump relay location Reply with quote

Hello to all,

I am trying to locate the FP Relay in a 85 ASC Convertible. I did manage to find the ECC relay so far, but no FP relay, I'm assuming it has a Pink/Black hash marked wire but stranger things have happened.... A copy of a correct schematic would also be very helpful.

Thank you
Back to top
View user's profile Send private message Visit poster's website Album
4-barrel Mike



Joined: 30 Jan 2016
Posts: 159
Location: Portland, OR

PostPosted: Wed Jul 20, 2016 11:10 pm    Post subject: Reply with quote

I believe it's under the driver's seat.

Power in - Yellow (18 ga fuse link in engine compartment)
Power out - Pink/black hash (to fuel pump)
Relay activation power (from inertia switch) - Red/black hash
Relay ground (via ECM) - Tan/light green dots

Info from 1985 Mustang/Capri Electrical & Vacuum Troubleshooting Manual (aka EVTM) http://www.ebay.com/itm/FREE-SHIPPING-1985-Ford-Mustang-Capri-Electrical-Vacuum-Troubleshooting-Manual-/272312719643?hash=item3f671a591b:g:xSoAAOSwIgNXjhiW&vxp=mtr

Mike
_________________
1985 5.0 SC, white/blue, modded by POs (more mods coming)
Back to top
View user's profile Send private message Album
oldguy



Joined: 20 Jul 2016
Posts: 4
Location: nola

PostPosted: Wed Jul 20, 2016 11:24 pm    Post subject: Reply with quote

Thanks Mike, but it's not under the driver's seat.
Back to top
View user's profile Send private message Visit poster's website Album
negusm
Site Admin


Joined: 25 Aug 2004
Posts: 5183
Location: Charlotte, NC

PostPosted: Thu Jul 21, 2016 12:50 am    Post subject: Reply with quote

85's had electric fuel pumps?

Manual cars had mechanical ones.

Automatic CFI ones, I am not sure on.

-Mike
_________________
1985 ascMcLaren Coupe - Midnight Blue
Under Restoration
Back to top
View user's profile Send private message Send e-mail Visit poster's website Album
knsstang



Joined: 27 Apr 2005
Posts: 197
Location: Detroit, Michigan

PostPosted: Thu Jul 21, 2016 2:19 am    Post subject: Re: Fuel pump relay location Reply with quote

oldguy wrote:
Hello to all,

I am trying to locate the FP Relay in a 85 ASC Convertible. I did manage to find the ECC relay so far, but no FP relay, I'm assuming it has a Pink/Black hash marked wire but stranger things have happened.... A copy of a correct schematic would also be very helpful.

Thank you

I have an 89 and mine is under the drivers seat. I've wired a fuel pump shutoff toggle switch to it (hidden to aid with anti-theft).
_________________
1989 Royal Gold Metallic #095 (225Hp)
2016 Kawasaki ZX14R (199.9Hp) (26,200 miles)
2013 Kia Optima (275Hp)
2012 GMC Yukon Denali (403Hp)


Last edited by knsstang on Thu Jul 21, 2016 1:36 pm; edited 2 times in total
Back to top
View user's profile Send private message Send e-mail Album
negusm
Site Admin


Joined: 25 Aug 2004
Posts: 5183
Location: Charlotte, NC

PostPosted: Thu Jul 21, 2016 1:30 pm    Post subject: Reply with quote

It's funny, I have seen a few people on the net say they found it under the driver's seat on an '85...one guy mentioned that if the carpet is replaced the installer will not often cut a spot for it to go through.

Another guy said his was in the trunk next to the latch.

-Mike
_________________
1985 ascMcLaren Coupe - Midnight Blue
Under Restoration
Back to top
View user's profile Send private message Send e-mail Visit poster's website Album
oldguy



Joined: 20 Jul 2016
Posts: 4
Location: nola

PostPosted: Thu Jul 21, 2016 2:08 pm    Post subject: Reply with quote

I removed seat to expose Alpine power amp (flopping around) and will pull carpet up once seat bracket and amp are removed (amp will be properly disposed of) as it feels like it could be under the carpet. I'll follow up with a post.

Thanks
Back to top
View user's profile Send private message Visit poster's website Album
oldguy



Joined: 20 Jul 2016
Posts: 4
Location: nola

PostPosted: Thu Jul 21, 2016 3:05 pm    Post subject: Reply with quote

I was wrong it's under the seat under the carpet. Screwy I had a mental block about fixing this thing till I found the FP relay. The blk/grn wire at the ECC relay according to wiring schematic is chassis ground, however it is intermittent. Yes it also terminates at #40 & #50? (hard to id on schematic) at the ECM and both HEGO sensors. I'm okay with splicing into blk/grn near ECC relay and grounding it. Yes the car runs when I ground it. The FP relay will remain EXPOSED under the seat now. Unsure how to post pix so imagine a low mileage red convertible that has survived in a museum for most of it's existence with an example of some of the most frightening stereo installation techniques I've run across.

Thanks Again
Back to top
View user's profile Send private message Visit poster's website Album
4-barrel Mike



Joined: 30 Jan 2016
Posts: 159
Location: Portland, OR

PostPosted: Thu Jul 21, 2016 4:10 pm    Post subject: Reply with quote

Good Job

Mike
_________________
1985 5.0 SC, white/blue, modded by POs (more mods coming)
Back to top
View user's profile Send private message Album
4-barrel Mike



Joined: 30 Jan 2016
Posts: 159
Location: Portland, OR

PostPosted: Thu Jul 21, 2016 6:00 pm    Post subject: Reply with quote

oldguy wrote:
. Yes it also terminates at #40 & #50? (hard to id on schematic)


EVTM shows 40 & 60 (which I think is a Ford standard, as later pin breakouts show the same).

Mike
_________________
1985 5.0 SC, white/blue, modded by POs (more mods coming)
Back to top
View user's profile Send private message Album
Display posts from previous:   
Post new topic   Reply to topic    ascMcLaren Enthusiasts Forum Index -> It's your call. All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group
Number of shameful bots caught by Anti-Spam ACP: 474