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

Looking for a little advice

Thread Tools
 
Search this Thread
 
Old Feb 17, 2013 | 08:19 PM
  #1  
Redrag65's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2013
Posts: 3
Likes: 0
Looking for a little advice

1991 5.0 TPI-- car went from running perfect to hard to start (3-4 tries in a row) then once running, car wants to chug/sputter/slight backfire when in drive. idling is fine, revving engine in neutral is fine, in gear though, chugging a little then smooths out, sputters a little then smooths out. Any ideas on my issue?
Reply
Old Feb 17, 2013 | 08:28 PM
  #2  
86irocdee's Avatar
Junior Member
 
Joined: Feb 2013
Posts: 11
Likes: 0
From: Houston texas
Car: 86 IROC
Engine: 305
Transmission: Automatic
Axle/Gears: Stock GM
Re: Looking for a little advice

sounds like your fuel pump may be going out. check fuel pressure.
Reply
Old Feb 17, 2013 | 08:31 PM
  #3  
Redrag65's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2013
Posts: 3
Likes: 0
Re: Looking for a little advice

Thank you, was hoping it wasn't connected to "injector issues."
Reply
Old Feb 17, 2013 | 08:38 PM
  #4  
86irocdee's Avatar
Junior Member
 
Joined: Feb 2013
Posts: 11
Likes: 0
From: Houston texas
Car: 86 IROC
Engine: 305
Transmission: Automatic
Axle/Gears: Stock GM
Re: Looking for a little advice

NO IF IT WAS AN INJECTOR ISSUE IT WOULD RUN LIKE CRAP AT IDLE AND DRIVE FINE DUE TO THE FACT THAT MORE AIR IS ENTER THE ENGINE SO IT WILL COMPENSATE FOR THE EXTRA FUEL.
Reply
Old Feb 17, 2013 | 08:41 PM
  #5  
Redrag65's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2013
Posts: 3
Likes: 0
Re: Looking for a little advice

Thanks, it's smooth as silk at idle.
Reply
Old Feb 17, 2013 | 08:49 PM
  #6  
86irocdee's Avatar
Junior Member
 
Joined: Feb 2013
Posts: 11
Likes: 0
From: Houston texas
Car: 86 IROC
Engine: 305
Transmission: Automatic
Axle/Gears: Stock GM
Re: Looking for a little advice

YOUR WELCOME LET ME KNOW HOW IT COMES OUT.
Reply
Old Feb 17, 2013 | 08:52 PM
  #7  
85 ZXX's Avatar
Member
iTrader: (1)
 
Joined: May 2009
Posts: 403
Likes: 0
Car: 85 Z28 T-Top 36mm sway & wonderbar
Engine: TPI L98 350 W/85 Vette Stage II ECM
Transmission: W/C T-5, alum drive shaft
Axle/Gears: 9 bolt posi, 3:27, PBR's, BB LS1's
Re: Looking for a little advice

Raise the hood at night; while running, look closely and check all the plug wires for visible sparking.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HoosierinWA
Tech / General Engine
5
Oct 7, 2015 10:15 AM
jaridjohn
Exhaust
14
Oct 5, 2015 07:01 AM
gord327
Transmissions and Drivetrain
13
Sep 29, 2015 10:18 PM
IROC ZELLER
Engine Swap
6
Sep 29, 2015 03:00 PM
mrdevontay
Body
0
Sep 2, 2015 08:04 PM




All times are GMT -5. The time now is 07:00 AM.