91 crx fuel issue, wont start

Thread Tools
 
Search this Thread
 
Old Dec 21, 2011 | 03:39 PM
  #1  
TehTaylor's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2011
Posts: 68
Likes: 0
Default 91 crx fuel issue, wont start

I have a 91 crx. it started and drove fine at first. Motor and trans were both stock. well it started to not want to start and i would have to leave the key on 3rd click for a few and then it would start, so i change the fuel filter and it still did it. so then i changed the pump to a walbro 255 and it just didnt want to start at all. i did a compression check and it was horrible (i cant remember the numbers). well then i changed the head with a d16z6 vtec head with a new head gasket and timing belt. i also did a mpfi swap with the d16z6 intake but i used obd0 injectors and resistor box and crx si ecu and dizzy. the only way the car will start is with starter fuild so i know the motor runs i just dont know if its not getting fuel or wont stay running on its own. If you have any ideas or suggestions please let me know thanks
Reply
Old Dec 22, 2011 | 02:26 AM
  #2  
crxsi1's Avatar
Honda-Tech Member
 
Joined: Aug 2011
Posts: 437
Likes: 0
From: chicago,il
Default Re: 91 crx fuel issue, wont start

Well do u hear the fuel pump prime??? U said u changed the pump is it grounded??? I mean if u have no pressure then the car won't start... I would start w that and check the injectors....
Reply
Old Dec 22, 2011 | 04:35 AM
  #3  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

Yes, it's obviously not getting fuel.

Y u no run vtec ecu with Z6 head swap?!
Reply
Old Dec 22, 2011 | 06:04 AM
  #4  
TehTaylor's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2011
Posts: 68
Likes: 0
Default Re: 91 crx fuel issue, wont start

It is getting fuel, i unhooked the fuel line from the fuel rail and had my buddy turn the key and fuel was flowing out like a river. you can clearly hear the fuel pump kick on as well.
Reply
Old Dec 22, 2011 | 06:36 AM
  #5  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

Interesting how the car can ignite the starting fluid, but not the fuel. Hmm...
Reply
Old Dec 22, 2011 | 09:38 AM
  #6  
90civic-ZC's Avatar
Honda-Tech Member
 
Joined: Oct 2011
Posts: 626
Likes: 0
From: Va
Default Re: 91 crx fuel issue, wont start

You seem to have done alot, have you double checked your mechanical timing and ignition timing? Your MPFI wiring and are you running a resistor box? What distributor are you using? Maybe I'm not understanding your description but I understand it starts with starting fluid and not by itself but does it stay running?
Reply
Old Dec 25, 2011 | 07:05 PM
  #7  
TehTaylor's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2011
Posts: 68
Likes: 0
Default Re: 91 crx fuel issue, wont start

Yeah as long as i keep spraying starter fuild in the intake it stays running, when we swapped the head I timed the motor right. Im using a 91 crx si dizzy and ecu for now just to get it running, then i plan on wiring it obd1 vtec. and yes im using a resistor box for a 90 integra
Reply
Old Dec 26, 2011 | 06:22 AM
  #8  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

I guess since you're getting fuel and spark and ignition timing and mechanical timing are all good, you must have old gas in the tank, lines, and rail. Drain the tank, blow out the lines, and the fuel rail, then fill the tank with fresh gas and try starting the car again. Bad gas will not ignite and it only takes a small amount of it in the rail to keep the car from firing up.

If that doesn't help matters, I'd suspect a weak coil in the distributor.

Also, before attempting to start the car, make sure the spark plugs are dry and properly gapped. If they're old, NGKs are cheap so you should throw in some fresh ones.
Reply
Old Dec 28, 2011 | 06:28 PM
  #9  
TehTaylor's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Feb 2011
Posts: 68
Likes: 0
Default Re: 91 crx fuel issue, wont start

Thanks for all the help, found out it was bad fuel injectors. now the car is smoking read bad. must be a problem with the headgasket when we switched the head though. once agian thanks for the reply
Reply
Old Dec 28, 2011 | 10:01 PM
  #10  
90civic-ZC's Avatar
Honda-Tech Member
 
Joined: Oct 2011
Posts: 626
Likes: 0
From: Va
Default Re: 91 crx fuel issue, wont start

What color smoke?
Reply
Old Dec 29, 2011 | 08:38 AM
  #11  
D16A6sohc's Avatar
Trial User
 
Joined: Dec 2011
Posts: 1
Likes: 0
Default Re: 91 crx fuel issue, wont start

Change the Injecters to a 96 accord that what it is had the same problem with mine
But had to put the stock computer in it
Reply
Old Dec 29, 2011 | 08:49 AM
  #12  
90civic-ZC's Avatar
Honda-Tech Member
 
Joined: Oct 2011
Posts: 626
Likes: 0
From: Va
Default Re: 91 crx fuel issue, wont start

He's running OBD 0 right now, so that's not gonna work.
Reply
Old Dec 29, 2011 | 09:40 AM
  #13  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

Originally Posted by D16A6sohc
Change the Injecters to a 96 accord that what it is had the same problem with mine
But had to put the stock computer in it
Reply
Old Dec 29, 2011 | 09:59 AM
  #14  
90civic-ZC's Avatar
Honda-Tech Member
 
Joined: Oct 2011
Posts: 626
Likes: 0
From: Va
Default Re: 91 crx fuel issue, wont start

^ hahahaha where the hell did you find that? second thought, I like the mystery. Reminds me of a Grand Theft Auto character.
Reply
Old Jan 27, 2012 | 03:10 PM
  #15  
9987654321mike's Avatar
Honda-Tech Member
 
Joined: Jan 2011
Posts: 19
Likes: 0
Default Re: 91 crx fuel issue, wont start

Im having the same fuel problem.I put a running b16a in my Ef and I have spark,fuel,air but fuel wont gothrew my injectors.I tryed the starter fluid thing and it worked.then I changed my injectors ive tryed Ef single cam,da ones,dsm 275,dsm450 and they all need resistor boxes, and those didn't work so I changed the resistor box 2 times.ive tryed different working dizzys thinking the cam position sensor was bad.
Reply
Old Jan 27, 2012 | 03:10 PM
  #16  
9987654321mike's Avatar
Honda-Tech Member
 
Joined: Jan 2011
Posts: 19
Likes: 0
Default Re: 91 crx fuel issue, wont start

O and I did fuel filter,255 walbro fuel pump and I know I did them right cause the single cam ran for a week untill I did my swap.ive checked the wiring amillon times ive rewied the dizzy just to make sure and still nothing
Reply
Old Jan 27, 2012 | 03:24 PM
  #17  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

You're a hopeless case then. Haul it to the scrapyard.
Reply
Old Jan 27, 2012 | 04:48 PM
  #18  
9987654321mike's Avatar
Honda-Tech Member
 
Joined: Jan 2011
Posts: 19
Likes: 0
Default Re: 91 crx fuel issue, wont start

Originally Posted by crvtectim
You're a hopeless case then. Haul it to the scrapyard.
That's not nice
Reply
Old Jan 27, 2012 | 06:06 PM
  #19  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

What ecu are you using?
Reply
Old Jan 27, 2012 | 06:10 PM
  #20  
9987654321mike's Avatar
Honda-Tech Member
 
Joined: Jan 2011
Posts: 19
Likes: 0
Default Re: 91 crx fuel issue, wont start

Pr3
Reply
Old Jan 28, 2012 | 06:17 AM
  #21  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

OBD0?
Reply
Old Jan 28, 2012 | 08:34 AM
  #22  
9987654321mike's Avatar
Honda-Tech Member
 
Joined: Jan 2011
Posts: 19
Likes: 0
Default Re: 91 crx fuel issue, wont start

Yea
Reply
Old Jan 28, 2012 | 04:32 PM
  #23  
crvtectim's Avatar
Honda-Tech Member
 
Joined: Dec 2009
Posts: 1,444
Likes: 3
From: Pensacola, FL.
Default Re: 91 crx fuel issue, wont start

Did you have to do a dpfi to mpfi conversion?
Reply
Old Jan 28, 2012 | 06:27 PM
  #24  
9987654321mike's Avatar
Honda-Tech Member
 
Joined: Jan 2011
Posts: 19
Likes: 0
Default Re: 91 crx fuel issue, wont start

No my Ef is an SI
Reply
Old Jan 28, 2012 | 08:56 PM
  #25  
Trailz-EX's Avatar
Honda-Tech Member
 
Joined: Apr 2004
Posts: 223
Likes: 0
From: pittsurgh, pa, usa
Default Re: 91 crx fuel issue, wont start

i would pull your wiring and recheck it. the resistor box and all. use an ohm, meter and pin out all your wires from the ecu to the injectors. then the resistor box. sounds like a wiring issue to me. something isnt let the injector work.
Reply



All times are GMT -8. The time now is 10:02 PM.