Location of fuel pump relays?
07-28-2008, 06:28 PM
#1
Racer
Thread Starter
Join Date: Apr 2005
Location: Waiting for the pass behind you, or Sebastopol, CA
Posts: 329
Likes: 0
Received 0 Likes
on
0 Posts
Location of fuel pump relays?
(I searched)
Where the heck are the fuel pump relays please?
I don't have a diagram for the front box.
Thanks!
Where the heck are the fuel pump relays please?
I don't have a diagram for the front box.
Thanks!
07-28-2008, 08:15 PM
#2
Drifting
Join Date: Feb 2006
Location: Elk Grove, California
Posts: 2,647
Likes: 0
Received 2 Likes
on
2 Posts
In the front trunk fuse box...they should the the first two round relays closest to the firewall...usually red, but I've seen them use the black ones there too. They're usually the warmest of any of the relays in there...a quick touch should confirm they are the fuel pump relays....unless your car isn't running. There has been quite a bit written on this subject including the posting of pictures showing the location of the relays. Do a quick search and you should come up with a lot of info on them.
07-28-2008, 08:26 PM
#3
Racer
Thread Starter
Join Date: Apr 2005
Location: Waiting for the pass behind you, or Sebastopol, CA
Posts: 329
Likes: 0
Received 0 Likes
on
0 Posts
Chuck, thanks.
That helps a ton.
Swapping EFI systems so I can't do the heat test - and my searches turned up null.
Appreciate it!
That helps a ton.
Swapping EFI systems so I can't do the heat test - and my searches turned up null.
Appreciate it!
07-28-2008, 09:26 PM
#4
Drifting
Join Date: Feb 2006
Location: Elk Grove, California
Posts: 2,647
Likes: 0
Received 2 Likes
on
2 Posts
Here's an extract of an article written on trouble shooting the fuel pumps...hope this helps. Giving the author his credit...it was written by Lee Rice.
Fuel Pumps on 930 Turbo, 1977-1989, (1976 used a single pump)
Both fuel pumps take power from one fuse (#16). Install a two gang fuse block, Nr. 911.612.085.04, near main fuse strips and run a red 3.0 cm/2 red wire from the battery terminal directly to the new fuse terminal, at the two gang end. The two fuel pump relay sockets for pump #1 and #2 have a red wire 2.5 cm/2 running from fuse #16 to terminal #30 of pump #2 and then run over to terminal #30 of pump socket #1. Cut the wire running between the two pins, #30, and securely splice it by solder and good insulation to a new 3.0 cm/2 red wire, running it to the new fuse block at #2. Be sure to solder the wire end before installing it to the fuse block. Remove the red 2.5 cm/2 wire from fuse #16 and run it to the new fuse block and attach it to the #1 fused terminal. #2 fuse should be a blue 25 amp, as it will still power the warm-up devises as well as the #2 fuel pump. #1 fuse can be a red 16 amp fuse.
These are a few simple upgrades that improve your reliability and safety. This upgrade takes less time to install than to write about it!
Fuel Pumps on 930 Turbo, 1977-1989, (1976 used a single pump)
Both fuel pumps take power from one fuse (#16). Install a two gang fuse block, Nr. 911.612.085.04, near main fuse strips and run a red 3.0 cm/2 red wire from the battery terminal directly to the new fuse terminal, at the two gang end. The two fuel pump relay sockets for pump #1 and #2 have a red wire 2.5 cm/2 running from fuse #16 to terminal #30 of pump #2 and then run over to terminal #30 of pump socket #1. Cut the wire running between the two pins, #30, and securely splice it by solder and good insulation to a new 3.0 cm/2 red wire, running it to the new fuse block at #2. Be sure to solder the wire end before installing it to the fuse block. Remove the red 2.5 cm/2 wire from fuse #16 and run it to the new fuse block and attach it to the #1 fused terminal. #2 fuse should be a blue 25 amp, as it will still power the warm-up devises as well as the #2 fuel pump. #1 fuse can be a red 16 amp fuse.
These are a few simple upgrades that improve your reliability and safety. This upgrade takes less time to install than to write about it!
The following users liked this post:
mxbennett (01-02-2020)
01-03-2020, 02:03 AM
#6
Three Wheelin'
You can pull the Horn and Fog Light relays and swap out to check if the car will start. This will get you home, been there . . .
Do not buy the CHINA relays, get the German units
The following users liked this post:
silverlock (08-01-2023)
