TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Weird 350 too no start.

Thread Tools
 
Search this Thread
 
Old 01-18-2018, 09:54 AM
  #1  
Senior Member

Thread Starter
iTrader: (6)
 
I_R_O_C_Z_2_8's Avatar
 
Join Date: Jan 2009
Location: Texas
Posts: 517
Likes: 0
Received 0 Likes on 0 Posts
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Weird 350 too no start.

What's up guys i got a 91 gta with a 350 tpi....yesterday I barely started it to move it to work on it it barely started and sputtered......the fuel filter was clogged...i changed it and now it won't start at all....i have 44 psi when the pump primes..i took the pump out to make sure it was not clogged...i checked all the fuses they are good. I'm thinking a wire or something broke when I moved it. Any ideas would be great as I was barely got to get it registered to drive it.
Old 01-18-2018, 10:45 AM
  #2  
Sponsor

iTrader: (92)
 
Tuned Performance's Avatar
 
Join Date: Dec 2004
Location: Mile High Country !!!
Posts: 15,408
Received 649 Likes on 573 Posts
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Weird 350 too no start.

Have you checked for spark and injector pulse ? Sounds like you have spark if it sputtered.
Do you have the original multec injectors ?
Old 01-18-2018, 01:06 PM
  #3  
Senior Member

Thread Starter
iTrader: (6)
 
I_R_O_C_Z_2_8's Avatar
 
Join Date: Jan 2009
Location: Texas
Posts: 517
Likes: 0
Received 0 Likes on 0 Posts
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: Weird 350 too no start.

Originally Posted by Tuned Performance
Have you checked for spark and injector pulse ? Sounds like you have spark if it sputtered.
Do you have the original multec injectors ?
Yes i have spark...it was running yesterday when I moved it...the fuel filter was clogged. I had to get the fuel pump to prime 3 times before it would start. So I changed the filter..no i have new Injectors the motor was rebuilt. But now it won't even start just cranks.
Old 01-18-2018, 01:09 PM
  #4  
Supreme Member

iTrader: (58)
 
Drew's Avatar
 
Join Date: Jul 1999
Location: Salina, KS
Posts: 20,309
Received 1,052 Likes on 748 Posts
Re: Weird 350 too no start.

Sounds like a pretty basic no start/no run issue. Turn to that section of the service manual, and start troubleshooting. Fuel? Fire? Timing? Work the problem.
Old 01-18-2018, 01:26 PM
  #5  
Senior Member

Thread Starter
iTrader: (6)
 
I_R_O_C_Z_2_8's Avatar
 
Join Date: Jan 2009
Location: Texas
Posts: 517
Likes: 0
Received 0 Likes on 0 Posts
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: Weird 350 too no start.

Originally Posted by Drew
Sounds like a pretty basic no start/no run issue. Turn to that section of the service manual, and start troubleshooting. Fuel? Fire? Timing? Work the problem.
well that's the weird thing is it was running when I moved it it had no check engine light or nothing. I'm thinking a wire broke somewhere. It had spark and fuel like ibsaidbthe psi is at 44 when I prime the pump. I hear the injectors getting the fuel
Old 01-18-2018, 01:51 PM
  #6  
Sponsor

iTrader: (92)
 
Tuned Performance's Avatar
 
Join Date: Dec 2004
Location: Mile High Country !!!
Posts: 15,408
Received 649 Likes on 573 Posts
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Weird 350 too no start.

Originally Posted by Tuned Performance
Have you checked for spark and injector pulse ? Sounds like you have spark if it sputtered.
Do you have the original multec injectors ?
Get a noid light, vats or bad icm. A icm can still work and give spark but fail for giving injector pulse.
Old 01-18-2018, 03:33 PM
  #7  
Senior Member

Thread Starter
iTrader: (6)
 
I_R_O_C_Z_2_8's Avatar
 
Join Date: Jan 2009
Location: Texas
Posts: 517
Likes: 0
Received 0 Likes on 0 Posts
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: Weird 350 too no start.

Originally Posted by Tuned Performance
Get a noid light, vats or bad icm. A icm can still work and give spark but fail for giving injector pulse.
yea itbwas thinking icm would it go bad from one day to the next....the vats is deleted...ill check the Icm and get back thanks.
Old 01-18-2018, 05:40 PM
  #8  
Senior Member

Thread Starter
iTrader: (6)
 
I_R_O_C_Z_2_8's Avatar
 
Join Date: Jan 2009
Location: Texas
Posts: 517
Likes: 0
Received 0 Likes on 0 Posts
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: Weird 350 too no start.

Originally Posted by I_R_O_C_Z_2_8
yea itbwas thinking icm would it go bad from one day to the next....the vats is deleted...ill check the Icm and get back thanks.

Well I found the problem. This wire got cut somehow and it was not making contact it goes into the pick up coil...of anyone has one laying around for sale please let me know. Thank you for all ur help.

Last edited by I_R_O_C_Z_2_8; 01-18-2018 at 09:47 PM.
Old 01-18-2018, 08:06 PM
  #9  
Moderator

iTrader: (3)
 
Abubaca's Avatar
 
Join Date: Feb 2001
Location: JAMESTOWN, NC
Posts: 8,366
Received 348 Likes on 275 Posts
Car: 1988 Iroc
Engine: L98 350
Transmission: 700R4
Axle/Gears: Hawks 8.8 - 3.73
Re: Weird 350 too no start.

I'm sure you could find one used, but they're all over ebay new. I needed one a few months back. Think I paid about $15 bucks.
Old 01-18-2018, 09:46 PM
  #10  
Senior Member

Thread Starter
iTrader: (6)
 
I_R_O_C_Z_2_8's Avatar
 
Join Date: Jan 2009
Location: Texas
Posts: 517
Likes: 0
Received 0 Likes on 0 Posts
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: Weird 350 too no start.

I found it on eBay thanks again.

Last edited by I_R_O_C_Z_2_8; 01-18-2018 at 09:56 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
coolrimsatleast
V6
19
11-21-2006 10:12 AM
NoWaySS
DIY PROM
1
12-12-2003 08:21 AM
Nasty_Bird_'90
Engine Swap
2
02-23-2003 08:35 AM
Reno
Tech / General Engine
8
10-14-2001 08:16 PM



Quick Reply: Weird 350 too no start.



All times are GMT -5. The time now is 11:07 AM.