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

Tbi chugging with a intermittent miss

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Old Feb 26, 2012 | 07:34 PM
  #1  
Naybob88's Avatar
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Joined: Nov 2011
Posts: 3
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Car: 91 Camaro Rs
Engine: 305 tbi
Transmission: 700r4
Axle/Gears: Stock
Tbi chugging with a intermittent miss

High I am having trouble with a 305 tbi.
I have changed the following parts.
Tps, cts, iac, map, ecu, distributer, router button, plug wires and plugs.
I have also clean and rebuilt the throttle body.

My problem is on idle I have a small miss that is not constant. And at 1/4 throttle it chugs. It runs like a top when it's cold though no miss or nothing!
Any thoughts are appreciated! I'm out of them I'm starting to think fuel pump but don't know. And egr is blocked off for now I will fix it when I get the car running right.

Last edited by Naybob88; Feb 26, 2012 at 08:52 PM.
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Old Feb 26, 2012 | 08:44 PM
  #2  
iggy1991's Avatar
Member
 
Joined: Jun 2002
Posts: 491
Likes: 1
From: Hockessin, Delaware
Car: Red 91 RS Camaro
Engine: LO3 with Comp Cam
Transmission: 700R4
Axle/Gears: 4th gen rear
Re: Tbi chugging with a intermittent miss

Did you change the spark plugs themselves?
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Old Feb 26, 2012 | 08:51 PM
  #3  
Naybob88's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2011
Posts: 3
Likes: 0
Car: 91 Camaro Rs
Engine: 305 tbi
Transmission: 700r4
Axle/Gears: Stock
Re: Tbi chugging with a intermittent miss

Yes I did forgot to list them so I have edited my thread. Thanks for pointing that out.

Last edited by Naybob88; Feb 26, 2012 at 08:54 PM.
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