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

major problems

Thread Tools
 
Search this Thread
 
Old Oct 10, 2006 | 03:52 AM
  #1  
purpleZ-28's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2005
Posts: 852
Likes: 0
From: Springfield, Oregon
Car: 85 Z28, 88 GTA, 68 Cutlass S
Engine: 305TPI X2 ;), Chevy 250
Transmission: T5, 700R4, powerslide >:(
Axle/Gears: posi, and posi w/discs :D.
major problems

ok. so my 85 is having some troubles.
i have an 88 TPI 305 in it, the problem is that it just doesnt want to run well.
it runs extremely rich, ive replaced the plugs and wires, the TPS, and the fuel filter and havent gotten anywhere. i dont have any trouble codes at all.
it starts right up every time, but when i put my foot on the throttle it loses RPMs and trys to die. if i let it idle long enough it will die on its own, and it idles pretty rough.
im just about at the end of my patience with it, and i have absolutley NO clue what to do.
any tips, ideas, suggestions?
Reply
Old Oct 10, 2006 | 07:24 AM
  #2  
tenpin842's Avatar
Senior Member
 
Joined: Jan 2006
Posts: 793
Likes: 0
From: Michigan
Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
well, maybe its getting too much gas. Check out your fuel pressure. Check all your injectors also.
Could be a bad fuel pressure regulator or you could have a couple bad injectors that are just dumping the gas in.
When I swapped my cam. I couldnt get it to run for crap. I still took it to get tuned so they could check it out. I had 5 bad injectors. So 5 out of 8.....I was looking pretty good hey? LOL. Anyway check those things out and keep us informed.
Reply
Old Oct 10, 2006 | 05:01 PM
  #3  
purpleZ-28's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2005
Posts: 852
Likes: 0
From: Springfield, Oregon
Car: 85 Z28, 88 GTA, 68 Cutlass S
Engine: 305TPI X2 ;), Chevy 250
Transmission: T5, 700R4, powerslide >:(
Axle/Gears: posi, and posi w/discs :D.
oh man. thats what i wanted to hear! lol
i will check those out and see whats up.
any other ideas while i have it apart? i really need to fix this thing
Reply
Old Oct 10, 2006 | 06:31 PM
  #4  
IROC-You's Avatar
Member
 
Joined: Sep 2006
Posts: 184
Likes: 0
From: JSS Soto, Tallil IRAQ
Car: 87 IROC-Z28
Engine: 414ci Twin Turbo
Transmission: T56
Axle/Gears: Ford 9"
Originally Posted by purpleZ-28
ok. so my 85 is having some troubles.
i have an 88 TPI 305 in it, the problem is that it just doesnt want to run well.
it runs extremely rich, ive replaced the plugs and wires, the TPS, and the fuel filter and havent gotten anywhere. i dont have any trouble codes at all.
it starts right up every time, but when i put my foot on the throttle it loses RPMs and trys to die. if i let it idle long enough it will die on its own, and it idles pretty rough.
im just about at the end of my patience with it, and i have absolutley NO clue what to do.
any tips, ideas, suggestions?

I was having that exact problem today. My MAF was unplugged! Check that, also your TPS may not be adjusted correctly.

Maybe your MAF is dead, do you have a check engine light? Engine will run (barely) with MAF not working/unplugged, but anything over about 3000RPM and the engine will take a big fat DUMP.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GeneralIesrussi
Carburetors
6
Jun 20, 2024 07:21 PM
andy74
Electronics
2
Sep 3, 2015 08:41 AM
Jackrabbit501
Electronics
1
Sep 2, 2015 09:14 PM
mrdevontay
Body
0
Sep 2, 2015 08:04 PM
greenyone
TPI
3
Sep 2, 2015 03:39 PM




All times are GMT -5. The time now is 04:59 PM.