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

Need help on fuel pump

Thread Tools
 
Search this Thread
 
Old Jun 27, 2007 | 08:56 PM
  #1  
fc3sdrifterz's Avatar
Thread Starter
Full Member
 
Joined: Mar 2007
Posts: 231
Likes: 0
From: Kansas
Need help on fuel pump

hey my fuel pump stop workin i dont know why.... it only work wen i connect a wires to that yellow wire... i was wondering if theres a solution to this....
Reply
Old Jun 27, 2007 | 09:02 PM
  #2  
NJGreenBudd's Avatar
rx-for-my-7
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,207
Likes: 15
From: New Jersey
read your haynes manual or give me a minute to read mine.....
Reply
Old Jun 27, 2007 | 09:04 PM
  #3  
NJGreenBudd's Avatar
rx-for-my-7
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,207
Likes: 15
From: New Jersey
is it turbo or N/A?
Reply
Old Jun 27, 2007 | 09:09 PM
  #4  
NJGreenBudd's Avatar
rx-for-my-7
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,207
Likes: 15
From: New Jersey
what year too
Reply
Old Jun 27, 2007 | 09:19 PM
  #5  
NJGreenBudd's Avatar
rx-for-my-7
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,207
Likes: 15
From: New Jersey
oh well here : http://www.teamfc3s.org/main/factory...TEMS_TURBO.pdf

sorry but i got other stuff to do, read in there though.....good stuff in there.
Reply
Old Jun 27, 2007 | 09:21 PM
  #6  
micah's Avatar
Winter sucks
Tenured Member 05 Years
 
Joined: Jan 2004
Posts: 3,083
Likes: 0
From: Newberg, Oregon
Originally Posted by fc3sdrifterz
hey my fuel pump stop workin i dont know why.... it only work wen i connect a wires to that yellow wire... i was wondering if theres a solution to this....
Check the obvious stuff first... Did you blow a fuse?

"Yellow wire" I assume you are talking about the plug on the drivers side speaker/strut tower?
Reply
Old Jun 27, 2007 | 10:11 PM
  #7  
NJGreenBudd's Avatar
rx-for-my-7
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,207
Likes: 15
From: New Jersey
thats the "service coupler" right, for the fuel pump check....I just know that you are supposed to hear the fuel pump kick on when you jump this thing and turn the key to on, it is used to prime the fuel system after service. Normally when you turn the key to on the fuel pump will buzz just for a second and then goes quiet until you crank the motor over, but you can jump that coupler to prime it after draining the pressure from the lines.

Does your car start now? Why do you think your pump doesn;t work? Do you hear it whirring in the tank when you turn the key to the on position w/o the jumper?

Maybe the relay??


*** It looks weird seeing my car all over the page.....
Reply
Old Jun 27, 2007 | 10:15 PM
  #8  
micah's Avatar
Winter sucks
Tenured Member 05 Years
 
Joined: Jan 2004
Posts: 3,083
Likes: 0
From: Newberg, Oregon
Originally Posted by NJGreenBudd
*** It looks weird seeing my car all over the page.....
Yeah, **** you and your nice paint job.

This is what mine looks like:


</hijack>
Reply
Old Jun 27, 2007 | 10:29 PM
  #9  
NJGreenBudd's Avatar
rx-for-my-7
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,207
Likes: 15
From: New Jersey
Ha!! you should see it in person, this is the same car but the other side.. different angle, same paint job too cept the sig one after a bath and wax...



go to pg, 4b 73 of that link and check those resistances of that plug ( the fuel pump resistor relay) with a ohmeter.... i don't really know what else to do... we need more info i think.. or maybe a pro will read this and know your answer..
Reply
Old Jun 28, 2007 | 12:07 AM
  #10  
HAILERS's Avatar
HAILERS
Tenured Member 10 Years
 
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Fuel pump only works if the key is HELD to start or the engine is actually running.

The only other case is when the key is ON and the fuel pump check connector is jumpered.

Turning the key to On and hearing a fuel pump motor for a moment? Ain't happening. Your hearing the air mix motor turning, not the fuel pump.
Reply
Old Jun 28, 2007 | 01:19 AM
  #11  
fc3sdrifterz's Avatar
Thread Starter
Full Member
 
Joined: Mar 2007
Posts: 231
Likes: 0
From: Kansas
yea even if i did... no fuel is shootin out the innjectors.... the fuel get to the point where there fuel line connect to the engine.. i'll put some pic of 2m
Reply
Old Jun 28, 2007 | 01:21 AM
  #12  
fc3sdrifterz's Avatar
Thread Starter
Full Member
 
Joined: Mar 2007
Posts: 231
Likes: 0
From: Kansas
my car is a swap j-spec t2
Reply
Old Jun 28, 2007 | 01:22 AM
  #13  
fc3sdrifterz's Avatar
Thread Starter
Full Member
 
Joined: Mar 2007
Posts: 231
Likes: 0
From: Kansas
i been havin fuel problem like for awhile now and still nothin
Reply
Old Jun 28, 2007 | 01:31 AM
  #14  
fc3sdrifterz's Avatar
Thread Starter
Full Member
 
Joined: Mar 2007
Posts: 231
Likes: 0
From: Kansas
yeah the only time the fuel pump works is wen i conect a lil wires in that yellow check wire
Reply
Old Jun 28, 2007 | 09:24 AM
  #15  
NJGreenBudd's Avatar
rx-for-my-7
Tenured Member 15 Years
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,207
Likes: 15
From: New Jersey
Originally Posted by fc3sdrifterz
yea even if i did... no fuel is shootin out the innjectors.... the fuel get to the point where there fuel line connect to the engine.. i'll put some pic of 2m
if you did what??

no fuel coming out of the injectors might be a beast of a different nature than the pump not working, maybe check the fuel pressure with the coupler jumped? Other than that, I'll leave it to hailer's now...your in good hands..

Good luck..
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
Rotospectre
New Member RX-7 Technical
3
Mar 28, 2018 03:33 PM
ChrisRX8PR
Single Turbo RX-7's
21
Oct 18, 2015 04:01 PM




All times are GMT -5. The time now is 07:56 AM.