LT1-LT4 Modifications 1993-97 Gen II Small Block V8

help please!! so much fuel it wont even fire

Thread Tools
 
Search this Thread
 
Old 04-06-2007, 07:04 PM
  #1  
On The Tree
Thread Starter
iTrader: (2)
 
ty97z's Avatar
 
Join Date: Apr 2006
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default help please!! so much fuel it wont even fire

this is going on my third month figuring this out! installed le2 package ported intake, bigger inj 37lbs and all supporting mods. the car is dumping so much fuel in it wont even start the fuel is even getting in the oil. the computer is tuned for everthing i have everthing on the car is new all msd ign etc etc

the starter is dragging very bad at first i thought it was the batt but that wasnt the case. so i bought a new starter and its still dragging so slow it wont start you pull a plug and there soaked yes i'm gettting spark. is it vapor lock??

the only thing i haven't replaced is the fuel press reg which is stock. it also has 41lbs of fuel press when you turn the key please help!!
Old 04-06-2007, 07:09 PM
  #2  
Banned
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

who did the tune? have you had it checked by some1 else? how about are you getting spark at the plug? are you sure they are 37 pound injectors? whats your fuel pressure at? is the regulator good? are the injectors leaking?

justa few things that came to mind...
Old 04-07-2007, 05:52 AM
  #3  
On The Tree
iTrader: (4)
 
30696bird's Avatar
 
Join Date: Feb 2006
Location: Dalton Ga.
Posts: 133
Likes: 0
Received 0 Likes on 0 Posts

Default

I bet the timing is off. Dragging starter, no start = timing off. Worth a check.
Old 04-07-2007, 07:53 AM
  #4  
On The Tree
Thread Starter
iTrader: (2)
 
ty97z's Avatar
 
Join Date: Apr 2006
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default

madz28 did the tune then he rechecked it also for me they are brand new 37lb racetronix inj . the fuel press is at 41 when i turn the key on. my inj shouldnt be leaking right? if there new are can some be leaking? how do i check if they are?
Old 04-07-2007, 06:59 PM
  #5  
TECH Enthusiast
iTrader: (8)
 
1SLO6's Avatar
 
Join Date: Nov 2003
Location: Covina
Posts: 695
Likes: 0
Received 0 Likes on 0 Posts
Default

u may have a bad injector on one is staying stuck open. i know u can have them tested but dont know where??? have u tried turning on the car and disconnecting them on by one it may clean up as soon as u disconnect an injector plug...
Old 04-07-2007, 07:06 PM
  #6  
TECH Resident
iTrader: (3)
 
otherwhitemeat's Avatar
 
Join Date: Oct 2006
Posts: 758
Received 1 Like on 1 Post

Default

Originally Posted by 1SLO6
u may have a bad injector on one is staying stuck open. i know u can have them tested but dont know where??? have u tried turning on the car and disconnecting them on by one it may clean up as soon as u disconnect an injector plug...


what he said
Old 04-07-2007, 08:51 PM
  #7  
TECH Enthusiast
 
smoknta's Avatar
 
Join Date: Jul 2003
Location: Evansville, IN
Posts: 697
Likes: 0
Received 0 Likes on 0 Posts
Default

You may have washed the cylinders now and may not be getting good compression. Have you checked for spark? You may have the opti out of time.
Old 04-08-2007, 05:16 AM
  #8  
Launching!
 
Michigan Skip's Avatar
 
Join Date: Mar 2003
Location: Michigan
Posts: 284
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by smoknta
You may have washed the cylinders now and may not be getting good compression. Have you checked for spark? You may have the opti out of time.
That's a very good point! Also, just to get it running, I'd swap the stock tune back in and put the stock injectors back in and try that.
Old 04-08-2007, 08:13 AM
  #9  
On The Tree
Thread Starter
iTrader: (2)
 
ty97z's Avatar
 
Join Date: Apr 2006
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default

when i first got this car together it would start for 5 seconds then die, it would flood itself out. about 5 times of that and i changed the plugs and oil i had fuel in the oil. now when i try to start it the starter drags and it wont start. the only thing i did between changing plugs and oil was put a msd coil on the car?
Old 04-08-2007, 08:14 AM
  #10  
On The Tree
Thread Starter
iTrader: (2)
 
ty97z's Avatar
 
Join Date: Apr 2006
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default

i also tried the stock inj put the starter just drags so i dont know were to go from here.
Old 04-08-2007, 08:41 AM
  #11  
Launching!
 
Michigan Skip's Avatar
 
Join Date: Mar 2003
Location: Michigan
Posts: 284
Likes: 0
Received 0 Likes on 0 Posts

Default

Here's what I'd do:
Put stock injectors in
Put stock tune back in if you can (It will run on a stock tune). I've seen corrupted files give guys a fit til they swapped a GOOD KNOWN tune back in.Not saying yours is but that would rule it out.
Pull plugs and squirt oil in the cylinders(this will help build compression back in the engine to help it start)
Make sure you have a fully charged battery
Check ALL the connections to the battery and starter
Spin the engine over to see if it still drags, and to oil the cylinders back up
If it spins good, put the plugs back in and try to start it

I feel your pain, there's not much worse than a motor that won't start and you can't figure out why.
Old 04-09-2007, 03:47 PM
  #12  
On The Tree
Thread Starter
iTrader: (2)
 
ty97z's Avatar
 
Join Date: Apr 2006
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default

thanks
Old 04-09-2007, 03:48 PM
  #13  
On The Tree
Thread Starter
iTrader: (2)
 
ty97z's Avatar
 
Join Date: Apr 2006
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default

the only thing that i didnt replace on this car is the fuel press reg its stock. could that be the problem and how can i test it?
Old 04-09-2007, 05:16 PM
  #14  
TECH Resident
iTrader: (7)
 
dre2013's Avatar
 
Join Date: Jun 2005
Location: Akron OH
Posts: 773
Likes: 0
Received 0 Likes on 0 Posts

Default

i wouldnt go too crazy about cranking it...a friend had a leaky injector and didnt know it...had a high-torque starter on it...went to fire it up, and punched a hole thru the piston.



Quick Reply: help please!! so much fuel it wont even fire



All times are GMT -5. The time now is 10:07 PM.