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Would like some advice please

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Old Nov 5, 2011 | 02:43 PM
  #1  
gsbuickman's Avatar
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Joined: Jul 2011
Posts: 12
Likes: 0
From: Nampa ID.
Car: 85' T-Top Trans-Am
Engine: 305cid TPI
Transmission: 4 speed auto
Would like some advice please

Hi guys, I have a lil' issue with my trans-am.

85' t-top TA
5.0 Tuned port injection
Automatic trans
fully loaded

When I fire up my car it surges a lil' until its warmed up, then purrs like a kitten.

I have full range of throttle in the driveway. When I pull onto the street, she starts sputtering, popping and falling on her face. from 1/4 to full throttle, she runs great.

When there's no load on the motor, she runs great. Put the motor in drive, and under a load and she falls on her face. Unless at 3/4 to full throttle.

I changes the brush in the distributor as well as new plugs and wires. I just put a mini high torque starter in it too.

I have a feeling my tps is out, but I would like your guys advice as well. You know things I dont. Any advice would be appreciated. Thanks
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Old Nov 13, 2011 | 02:55 AM
  #2  
el_muerte's Avatar
Member
 
Joined: Nov 2005
Posts: 428
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From: Edmonton, AB
Car: '87 Z-28
Engine: LT1-topped 400
Transmission: T56
Axle/Gears: 3.42
Re: Would like some advice please

Check your ignition timing and fuel pressure.
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Old Nov 13, 2011 | 06:54 AM
  #3  
vetteoz's Avatar
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20 Year Member
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Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Would like some advice please

Originally Posted by gsbuickman
I have a feeling my tps is out
So did you check it?
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