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

dont start or start, the car decides

Thread Tools
 
Search this Thread
 
Old 05-11-07, 02:47 PM
  #1  
Don't hate my V8

Thread Starter
iTrader: (4)
 
gear_grinder's Avatar
 
Join Date: Mar 2006
Location: Cornfield, Indiana
Posts: 1,129
Likes: 0
Received 0 Likes on 0 Posts
dont start or start, the car decides

I have a '87 TII that i just put 720cc Venoms (Stock Comp) in and they seem to work great. But now with the wether being warmer in michigan were i live it is starting Extremly hard or not starting at all only when hot. The car Starts almost emiditly when its cold out but not after its be warmed up and it is hot out side. I am really have no clue on this one, thanks alot.
Old 05-11-07, 03:04 PM
  #2  
Is he planning to fly?!

 
demontwig's Avatar
 
Join Date: Feb 2007
Location: Kent, WA
Posts: 282
Likes: 0
Received 0 Likes on 0 Posts
No idea really, mine does the same thing with stock injectors. It really pisses me off. Flooding maybe? Someone suggested my MAF sensor is bad...I hope someone chimes in
Old 05-11-07, 03:32 PM
  #3  
Don't hate my V8

Thread Starter
iTrader: (4)
 
gear_grinder's Avatar
 
Join Date: Mar 2006
Location: Cornfield, Indiana
Posts: 1,129
Likes: 0
Received 0 Likes on 0 Posts
yeah, i had flooding isues w/ my car befor i got new injectors. i will check the MAFS. My car will start when hot when under full throtle but not if the throtle is not pressed
Old 05-11-07, 03:37 PM
  #4  
Is he planning to fly?!

 
demontwig's Avatar
 
Join Date: Feb 2007
Location: Kent, WA
Posts: 282
Likes: 0
Received 0 Likes on 0 Posts
Full throttle when you first crank it over hot, or after it doesn't start normally and then you floor it? Might have to try that...
Old 05-11-07, 04:11 PM
  #5  
Don't hate my V8

Thread Starter
iTrader: (4)
 
gear_grinder's Avatar
 
Join Date: Mar 2006
Location: Cornfield, Indiana
Posts: 1,129
Likes: 0
Received 0 Likes on 0 Posts
i start cranking the engine as soon as the pedal hits the floor
Old 05-11-07, 04:18 PM
  #6  
Is he planning to fly?!

 
demontwig's Avatar
 
Join Date: Feb 2007
Location: Kent, WA
Posts: 282
Likes: 0
Received 0 Likes on 0 Posts
And it starts right up?
Old 05-11-07, 04:22 PM
  #7  
R.I.P. Guitarjunkie28

iTrader: (24)
 
-=Lil Red=-'s Avatar
 
Join Date: Nov 2003
Location: 626 So Cal
Posts: 4,370
Received 4 Likes on 4 Posts
check your compression, hot start problems usually occur when you have low compression or leaky injectors may be the ones flooding your motor.
Old 05-11-07, 04:47 PM
  #8  
Don't hate my V8

Thread Starter
iTrader: (4)
 
gear_grinder's Avatar
 
Join Date: Mar 2006
Location: Cornfield, Indiana
Posts: 1,129
Likes: 0
Received 0 Likes on 0 Posts
my motor is prolly **** out then cuz i just put new injectors in it
Old 05-11-07, 06:49 PM
  #9  
Senior Member

 
Join Date: Mar 2004
Location: AZ/CA
Posts: 485
Likes: 0
Received 0 Likes on 0 Posts
The MAF doesnt play any part in the vehicle starting. Under 500 rpm's the computer sends constant fuel to the motor.

Did you have this problem before you put the 720cc injectors into it? You are still running 550cc primary injectors right?
Old 05-11-07, 07:49 PM
  #10  
Don't hate my V8

Thread Starter
iTrader: (4)
 
gear_grinder's Avatar
 
Join Date: Mar 2006
Location: Cornfield, Indiana
Posts: 1,129
Likes: 0
Received 0 Likes on 0 Posts
All of my Injectors are 720cc, and i had leaking injectors so i decied to up-grade. you could smell the fuel in the exhaust when i had my 550 in it when it ran because they leaked so bad.
Old 05-11-07, 07:52 PM
  #11  
Senior Member

 
Join Date: Mar 2004
Location: AZ/CA
Posts: 485
Likes: 0
Received 0 Likes on 0 Posts
There you go. You need something to tune your fuel with! You're running STOCK ecu with upgraded higher flowing primary injectors, with no way to tune them. Your upgraded injectors are flooding your motor with too much fuel on start-up.

What are your mods? Do you need 720cc primaries? Im pushing close to 15lbs of boost and im still using the 550cc primaries with 720cc secondaries...... too much fuel flow man....
Old 05-11-07, 07:54 PM
  #12  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by gear_grinder
All of my Injectors are 720cc, and i had leaking injectors so i decied to up-grade. you could smell the fuel in the exhaust when i had my 550 in it when it ran because they leaked so bad.

Post of the YEAR!
Old 05-11-07, 07:58 PM
  #13  
Don't hate my V8

Thread Starter
iTrader: (4)
 
gear_grinder's Avatar
 
Join Date: Mar 2006
Location: Cornfield, Indiana
Posts: 1,129
Likes: 0
Received 0 Likes on 0 Posts
I have Intake, exhaust, and some Phat plug wires, but thats it. i did plan on getting a boost gauge, BOV, FCD, and boost controler to open the stock turbo all the way up.
Old 05-11-07, 08:02 PM
  #14  
Senior Member

 
Join Date: Mar 2004
Location: AZ/CA
Posts: 485
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by gear_grinder
my car is a 1987 (NOV of 86) car, it has low imp injectors (1.5-3ohms).
Ok? The problem still exists that you're running too much fuel through those 720cc primary injectors, be them low OR high impedence. Get an SAFC or an ECU upgrade to be able to let the car know how much fuel to give, or downgrade to new 550cc primary/720cc secondary injectors and an Rtek 1.7 chip
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
Kyo
2nd Generation Specific (1986-1992)
6
04-13-19 09:24 AM
torky007
3rd Generation Specific (1993-2002)
7
08-17-15 05:14 PM



Quick Reply: dont start or start, the car decides



All times are GMT -5. The time now is 08:04 AM.