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

Accelerator Pump ona TBI Carb?

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Old Feb 12, 2004 | 07:26 PM
  #1  
1988SportsCoupe's Avatar
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Joined: Feb 2004
Posts: 20
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From: Houston, TX. (USA)
Car: 1988 Chevy Camaro Sports Coupe
Engine: 305
Transmission: TH700R-4
mabe a vacuum leak?

kinda new to forum but i think someone should be able to help!

1988 White Camaro Sports Coupe
305ci 5 liter V8
TH700R-4
TBI Fuel Injected
101K miles very clean externaly as well as under the hood
Houston TX
All numbers maching and factory parts minus filters
Only owned it for a year. bought for $4K
In Immaculate condition.
runs perfect! looks great, all factery/stock Util

I was driving to work the other day (about 35 or so mph) in the rain and it was cold as hell and my car just started to studder and hesitate and really wanted to stall. but as long as i kept the idle at about 3K rpms when i had to come to a stop. made it to work. then when i got off work it started right up (still raining) but would only stay running if i "didnt" touch the peddle. as soon as I did the engine would start idleing very very rough and then die. so i pulled outof the parking lot and starting on down the road (at about 15-25 mph any more it would stall) made it about 20 ish miles till i got home even went though the drive though at mc donnalds. oil and temp everything is fine. (still raining like hell). so I grounded the ecm terminal A+B to check for stored (check engine) codes and none. other than 1-2 1-2. the fact that it only happens when i touch the peddle means i am getting gas so my fuel pump should be good.

even today after work (wife drove me to/from work) it started up just fine with out touching the peddle at all for about 60 or so secs nice and smooth then started to then did die.

I didnt see any vacuume leaks nor do i hear one.

Im drawing a blank. Never had any probls till now. was running nice and quiet.

Any Ideas?

please help. as I have no car and have to be able to get to work.

Thanks,

Chris

Last edited by 1988SportsCoupe; Feb 12, 2004 at 08:54 PM.
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Old Feb 12, 2004 | 07:29 PM
  #2  
PhilM's Avatar
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Joined: Aug 2002
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From: KCMO
Car: Accepting applications...
ignition module, if you sure about fuel pump, or maybe your fuel filter, but it seems a bit sudden for that. get the module checked.
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Old Feb 12, 2004 | 07:31 PM
  #3  
PhilM's Avatar
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From: KCMO
Car: Accepting applications...
oh and it's either TBI or carb, not both. TBI is fuel injection...
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Old Feb 12, 2004 | 07:40 PM
  #4  
1988SportsCoupe's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2004
Posts: 20
Likes: 0
From: Houston, TX. (USA)
Car: 1988 Chevy Camaro Sports Coupe
Engine: 305
Transmission: TH700R-4
Sorry, it's TBI (fuel injected) not carburated. Thanks again. Chris
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