Notices
Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. switch?

Thread Tools
 
Search this Thread
 
Old 12-09-2009, 06:21 AM
  #1  
Honda-Tech Member
Thread Starter
 
acidburn2k2's Avatar
 
Join Date: Dec 2005
Location: Somewhere, FL, US
Posts: 345
Likes: 0
Received 0 Likes on 0 Posts
Default need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. switch?

So I am having problems w/ my Sol starting. It is sort of an erratic issue but I did some diagnosing. Yesterday when I went to start my car to go to work it turned but did not start, i noticed the fuel pump wasn't priming. Coming back from work I decided to diagnose the problem, my fuel pump works fine. I have the problem narrowed down to my main relay or possibly my ignition switch. Here is what i base my diagnosis on:

after trying several times, the pump will prime and the car will start. (leads me to believe its the ignition switch starting to go bad)

car does not start w/ remote start either (remote start bypasses ignition switch leading me to believe it is main relay)

when pump finally kicks in and primes, it works everytime afterwards, until the car sits for a while, then we are back to not priming/starting.

I just wanted to know what your opinions are, if I am missing anything? When the fuel pump primes, the car fires right up so I know its a fuel delivery issue and not a spark/air issue. and since I know the fuel pump works, it has to be an electrical issue, just need to pin point the actual issue

thanks in advance
Carlos
Old 12-09-2009, 12:42 PM
  #2  
Honda-Tech Member
Thread Starter
 
acidburn2k2's Avatar
 
Join Date: Dec 2005
Location: Somewhere, FL, US
Posts: 345
Likes: 0
Received 0 Likes on 0 Posts
Default Re: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. swi

bump bump, anyone?
Old 12-09-2009, 01:19 PM
  #3  
Honda-Tech Member
 
CivicSpoon's Avatar
 
Join Date: Jul 2004
Location: Central, NY, USA
Posts: 1,348
Received 1 Like on 1 Post
Default Re: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. swi

When the car doesn't start, and the fuel pump doesn't prime, are you getting spark?
Old 12-09-2009, 03:06 PM
  #4  
Honda-Tech Member
Thread Starter
 
acidburn2k2's Avatar
 
Join Date: Dec 2005
Location: Somewhere, FL, US
Posts: 345
Likes: 0
Received 0 Likes on 0 Posts
Default Re: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. swi

Originally Posted by CivicSpoon
When the car doesn't start, and the fuel pump doesn't prime, are you getting spark?
to be honest, didnt even check, I heard the pump not priming and I ran w/ that
Old 12-09-2009, 03:09 PM
  #5  
Honda-Tech Member
 
93egSLEEPER's Avatar
 
Join Date: Apr 2007
Location: Seahawks WA, USA
Posts: 7,637
Likes: 0
Received 4 Likes on 4 Posts
Default Re: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. swi

check all your grounds. sounds like a main fuel relay to me though.
Old 12-09-2009, 03:09 PM
  #6  
Honda-Tech Member
 
Dokta's Avatar
 
Join Date: Jan 2002
Location: Lyme, CT
Posts: 410
Likes: 0
Received 0 Likes on 0 Posts
Default Re: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. swi

Sounds similar to when my pgm-fi relay died.
Old 12-10-2009, 04:51 AM
  #7  
Honda-Tech Member
Thread Starter
 
acidburn2k2's Avatar
 
Join Date: Dec 2005
Location: Somewhere, FL, US
Posts: 345
Likes: 0
Received 0 Likes on 0 Posts
Default Re: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. swi

OK, new info, and this will help the case of a bad relay even more I guess. When I let the car sit for a while (in this case overnight), and I turn the key, the fuel pump does prime, but i have to sit there for about a minute before I hear the relay click and the pump prime, anyone had this problem before?
Old 12-10-2009, 06:25 AM
  #8  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. swi

Clean and tighten the ground on the thermostat housing and resolder the main relay.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
crazyimport
Honda Civic / Del Sol (1992 - 2000)
6
09-02-2008 09:22 AM
rsanders21
Honda CRX / EF Civic (1988 - 1991)
9
10-30-2007 10:22 PM
wernhersey
Honda CRX / EF Civic (1988 - 1991)
3
05-30-2007 03:58 PM
2camsaam
Tech / Misc
2
07-14-2003 09:09 AM
fluffy
Honda Civic / Del Sol (1992 - 2000)
13
11-07-2002 03:55 PM



Quick Reply: need a 2nd opinion to my diagnosis (fuel pump not priming, main relay or ign. switch?



All times are GMT -8. The time now is 07:46 AM.