84 carb car w/in-tank pusher pump, where is the relay that controls it?
09-27-2013, 08:41 AM
#1
84 carb car w/in-tank pusher pump, where is the relay that controls it?
I've got an 84 that had the in-tank pusher pump added to it. I replaced my in-tank pump some years back with a 255lph wahlboro unit but ran an external fuel pump relay to power it. I'd like to use the factory harness but I have no idea where the relay in the engine bay is. I do know that there was no fuse in the fuse box at the time I did the change over so the pusher-pump wasn't operational. When I did the swap over, I did put a fuse in the fuse box to see if that would give me power to the connector but it didn't. So more than likely the relay or the wiring is bad...I'd like to start with the relay.
Does anyone have a picture or good description of where the relay would be? Any help would be greatly appreciated!
Does anyone have a picture or good description of where the relay would be? Any help would be greatly appreciated!
09-27-2013, 09:10 AM
#2
Supreme Member
iTrader: (13)
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes
on
11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 84 carb car w/in-tank pusher pump, where is the relay that controls it?
On later cars it is by the brake booster
09-28-2013, 06:23 PM
#4
Senior Member
iTrader: (10)
Join Date: Apr 2007
Location: The Pocono Mountains, PA
Posts: 773
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Firebird, Dad bought it new
Engine: 5.7L Vortec w/ LT4 Hot cam
Transmission: 700r4 transgo shiftkit 2600 stall
Axle/Gears: 3.42 '02 SS 6 spd rear
Re: 84 carb car w/in-tank pusher pump, where is the relay that controls it?
wondering what you found out about this, im going to be ditching my ecu and I want to use the fuel pump relay to turn my intank on and off as well... sub'n
09-30-2013, 11:55 PM
#5
Re: 84 carb car w/in-tank pusher pump, where is the relay that controls it?
These were taken from an 85 Shop manual for the "G" code 'HO' engine - but the set-up should be the same in your 84.
That should be enough info to ge the system workin' again !
That should be enough info to ge the system workin' again !
10-01-2013, 03:05 AM
#6
Supreme Member
iTrader: (13)
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes
on
11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 84 carb car w/in-tank pusher pump, where is the relay that controls it?
As soon as the engine cranks over the pump runs and it turns off when the engine dies.
No need for any wiring to the key or extra wiring as some do with carb swaps
10-01-2013, 08:47 AM
#7
Re: 84 carb car w/in-tank pusher pump, where is the relay that controls it?
Thanks for the photo! I'll take a look at mine tonight at home, but I'm pretty sure that's the fan relay on my car. However...there are two of those relay's. I'll take a picture tonight and post what mine looks like.
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
03-05-2017 06:37 PM
