TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

hesitation

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Old Apr 14, 2008 | 01:32 PM
  #1  
SLONOMO91RS's Avatar
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Joined: Dec 2006
Posts: 34
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From: Asheville, NC
Car: 91 camaro rs
Engine: 305 tbi
Transmission: t-5
Axle/Gears: 3.08
hesitation

My car has a bad hesitation when it is cold most of the time, but sometimes it runs fine. When it is running normal temp ,I can dump the clutch and it will fall on its face or sometimes it will fry off the one wheel as far as it can. I have replaced about every sensor I can think of, and it still has this problem. Should I replace the distributer? Any ideas will help alot.
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Old Apr 14, 2008 | 05:06 PM
  #2  
SLONOMO91RS's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2006
Posts: 34
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From: Asheville, NC
Car: 91 camaro rs
Engine: 305 tbi
Transmission: t-5
Axle/Gears: 3.08
Re: hesitation

anybody ?
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Old Apr 14, 2008 | 06:19 PM
  #3  
fullsize fun's Avatar
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Joined: Dec 2005
Posts: 174
Likes: 2
From: Shelby,N.C.
Car: 1986 pontiac bonneville
Engine: LB9 305
Transmission: MK6 T5
Axle/Gears: 3.42
Re: hesitation

sounds like the fuel pump is getting weak.
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Old Apr 15, 2008 | 07:12 AM
  #4  
SLONOMO91RS's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2006
Posts: 34
Likes: 0
From: Asheville, NC
Car: 91 camaro rs
Engine: 305 tbi
Transmission: t-5
Axle/Gears: 3.08
Re: hesitation

I replaced the pump and filter about a month ago when it started doing this. I also have replaced tps, map sensor, ignition mod., knock sensor, esc, coil, plugs, cap, rotor, coolant temp sensor. could it be a ground problem? I also have a new distributer I just havnt tried it yet.
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Old Apr 23, 2008 | 04:26 PM
  #5  
Choate's Avatar
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Joined: Aug 2005
Posts: 7
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From: jax, FL
Car: '92 RS
Engine: "305" TBI
Transmission: T-5
Re: hesitation

sure you have the right injectors? when i first got my maro it ran like a beast for a while then one day it did just what youre sayin... dosnt make sense to me but the 350 injectors just messed it up, swapped em out and baddboom all good...
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