LE2 Build completed... (will not start help needed)
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Joined: Jul 2005
Posts: 297
From: Wisconsin
LE2 Build completed... (will not start help needed)
Well today me and my buddy finished my LE2 build, primed the oil, filled the radiator and went to start her up..... and sputter sputter died, tried again and a again still nothing. Finally threw fuel pressure gauge on, with the key on we get 43lbs then it quick bleeds off to zero. So naturally we check for fuel leaks, check the new injectors to see if they are leaking at all, and everything checks out ok. We were out of ideas so we pulled the fuel rail, left the injectors in and pressurized the system, sure enough the injectors were not leaking yet the pressure still quickly bleed off. Don't know what to check next leaning towards the fuel pressure regulator. Did notice when cranking the motor the need bounces around 40 lbs. We are out of ideas, and input is greatly appreciated.
Last edited by z28_theantirice; Jun 2, 2007 at 06:38 PM.
Registered User
Joined: Jul 2005
Posts: 747
From: Baton Rouge, LA
Well today me and my buddy finished my LE2 build, primed the oil, filled the radiator and went to start her up..... and sputter sputter died, tried again and a again still nothing. Finally threw fuel pressure gauge on, with the key on we get 43lbs then it quick bleeds off to zero. So naturally we check for fuel leaks, check the new injectors to see if they are leaking at all, and everything checks out ok. We were out of ideas so we pulled the fuel rail, left the injectors in and pressurized the system, sure enough the injectors were not leaking yet the pressure still quickly bleed off. Don't know what to check next leaning towards the fuel pressure regulator. Did notice when cranking the motor the need bounces around 40 lbs. We are out of ideas, and input is greatly appreciated.
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Joined: Jul 2005
Posts: 297
From: Wisconsin
Yea, I am second guessing myself on that. Seemed to go on to smoothly almost. Still wondering about the fuel pressure bleeding of so fast from 43 lbs down to zero in about 10 seconds
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Joined: Jan 2007
Posts: 31
From: Louisville, KY
Fuel Pressure
The fuel pressure bleeds off quickly in my car as well. I have traced it down to a cracked check vlv in the tank(I can hear it leak back into the tank). The only thing it effects is initial start up. I have to prime mine by turning the key to run,(and holding it),a few times before I crank it.
This is probably not your problem since you just ripped the motor down, but at least you should be able to eliminate it.
I would pull a plug and do a spark check. Check all of the obvious stuff like wires, plug wires, etc., then I would check the opti to make sure you indexed it right. There is only a very small gap if you have it indexed wrong. This could be hard to detect if you don't look well for it.
This is probably not your problem since you just ripped the motor down, but at least you should be able to eliminate it.
I would pull a plug and do a spark check. Check all of the obvious stuff like wires, plug wires, etc., then I would check the opti to make sure you indexed it right. There is only a very small gap if you have it indexed wrong. This could be hard to detect if you don't look well for it.
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Joined: Jul 2005
Posts: 297
From: Wisconsin
I did have Datamaster going on the initial start, not much data can be collected but if you can see something thats not right let me know..
http://www.yourfilelink.com/get.php?fid=339593
http://www.yourfilelink.com/get.php?fid=339593
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