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

Car problems again. Won't stay running.

Old Oct 6, 2003 | 07:16 PM
  #1  
prOject-IrOc's Avatar
Thread Starter
Supreme Member
 
Joined: May 2003
Posts: 1,009
Likes: 0
From: Gilbert
Car: 1990 Iroc-Z
Car problems again. Won't stay running.

Ok, so lately the car has been acting a lil weird. Sometimes when i would start the car, it would start up, but idle reeeaaallly low. Like normally i can hear the car just fine while it's idling. but sometimes it just idles so quiet that i can barely tell it's running.

So this morning i go out to go to work, i start the car, it's idling REALLY low, then stumbles and dies. I tried to start it back up several times, but it just dies if i let it idle. If i give it gas, it revs just fine, and sounds good, but dies at idle.

Now my first guess is that it is my fuel injectors. I have had 3 of the 8 replaced about 2 years ago, and they shop told me there were a couple other injectors that were clogged and dying. Unfortunately i didn't have the money to fix them then, but the car has been doing great till now.

Well, i just wanted some other ideas. I already ordered the new injectors from SLP, #25's, and they should be here by Monday. Anyone else agree that this sounds like injectors? Thanks for the help.
Reply
Old Oct 6, 2003 | 07:28 PM
  #2  
strokedtpi's Avatar
Member
 
Joined: Feb 2003
Posts: 178
Likes: 0
From: Denison and Ames, Iowa
Car: 1990 Formula 350
Engine: 5.7
Transmission: 700R4
what about the IAC?? just a thought
Reply
Old Oct 6, 2003 | 08:45 PM
  #3  
prOject-IrOc's Avatar
Thread Starter
Supreme Member
 
Joined: May 2003
Posts: 1,009
Likes: 0
From: Gilbert
Car: 1990 Iroc-Z
Originally posted by strokedtpi
what about the IAC?? just a thought
hmm...yah i try that. where is it? lol
Reply
Old Oct 6, 2003 | 08:57 PM
  #4  
strokedtpi's Avatar
Member
 
Joined: Feb 2003
Posts: 178
Likes: 0
From: Denison and Ames, Iowa
Car: 1990 Formula 350
Engine: 5.7
Transmission: 700R4
i believe its on the throttle body--not really sure what side tho--actually i think it is on the bottom half of the passengers side of the throttle body....i think there is a tech article somewhere youll have to look a littl ebit ont he main homepage...

later
Reply
Old Oct 6, 2003 | 10:30 PM
  #5  
Blazer79's Avatar
Junior Member
20 Year Member
 
Joined: Oct 2003
Posts: 75
Likes: 0
From: Guatemala, Central America
Car: 1986 Iroc-Z
Engine: Stock 305 TPI MAF w 148,000 mi.
Transmission: 700R4
Goto the main page, click on Technical articles on the left, then under the Carbs/FI category, you'll find the IAC and TPS adjustment article.

Good Luck
Reply
Old Oct 6, 2003 | 10:42 PM
  #6  
strokedtpi's Avatar
Member
 
Joined: Feb 2003
Posts: 178
Likes: 0
From: Denison and Ames, Iowa
Car: 1990 Formula 350
Engine: 5.7
Transmission: 700R4
thanks blazer i have too short of attention spand to look around for that stuff..haha
Reply
Old Oct 7, 2003 | 12:33 AM
  #7  
prOject-IrOc's Avatar
Thread Starter
Supreme Member
 
Joined: May 2003
Posts: 1,009
Likes: 0
From: Gilbert
Car: 1990 Iroc-Z
hey thanx alot guys, ima go look now.
Reply
Old Oct 7, 2003 | 07:25 AM
  #8  
92 zzz28's Avatar
Supreme Member
 
Joined: Nov 2001
Posts: 1,886
Likes: 0
From: Jacksonville, NC
Car: Guess
Engine: Crazy 8
Transmission: So close to being a manual I can taste it
When you had those injectors replaced years ago, were your symptoms the same?
Reply
Old Oct 7, 2003 | 10:48 AM
  #9  
prOject-IrOc's Avatar
Thread Starter
Supreme Member
 
Joined: May 2003
Posts: 1,009
Likes: 0
From: Gilbert
Car: 1990 Iroc-Z
well when those died, the car started stumbling a little bit. I pulled over, and the car died. I started it back up, and it seemed ok so i tried to get it home. After about 2 blocks, the car died and won't not fire back up. Just turned over n over n over. Mind you, this was 3 days after i bought the car. I think it wasn't used to my driving.

So i finally had it towed to the shop (a chevy dealer ) and they charged me 917.80 to change 3 injectors!!!

Yah i thought it would have been impossible for me to change them...i knew nothing about my car then.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ghettobird52
Tech / General Engine
16
Jul 5, 2024 11:18 PM
theshackle
Tech / General Engine
4
Mar 5, 2017 06:37 PM
justin57
TBI
30
Aug 20, 2015 07:05 PM
Sherpajames
Tech / General Engine
1
Aug 7, 2015 06:56 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:33 AM.