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Help please cant find anything

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Old May 2, 2011 | 10:30 PM
  #1  
305CamaroTBI's Avatar
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Help please cant find anything

I have the 305 TBI camaro it idled high and stalled in gear. I changed distributor cap and rotor with the plugs and wires still idled high and stalled i smell a rich mixture i got no codes i adjusted the idle screw 2 1/2 turns out and it idles now at about 1300 rpm and in gear its about 700-750 but sometimes still stalls out maybe after a minute or so i also sprayed everything for a vacuum leak i think i hear one but hard to hear over the injectors spraying any ideas would be appreciated
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Old May 2, 2011 | 11:15 PM
  #2  
ASE doc's Avatar
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From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Help please cant find anything

Sounds like a lean condition. How is your injector spray pattern? It's fairly common for the fuel pressure regulator spring to breakdown and cause a drop in fuel pressure at the injectors. This translates into a lean condition. Also, check the EGR valve for sticking open.
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Old May 3, 2011 | 12:11 AM
  #3  
305CamaroTBI's Avatar
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Re: Help please cant find anything

well i smell fuel? like a rich mixture? how would tht account to a lean mixture as your saying? and i checked the egr valve its good and the pattern is ok the pass. side one is slightly clogged but tht would make a lean mixture.. but yet again i smell fuel as if a rich mixture is present i am trying to use fuel injector cleaner for it currently
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Old May 4, 2011 | 03:43 AM
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ASE doc's Avatar
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Joined: Apr 2010
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From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Help please cant find anything

Too lean will actually cause lean misfire, resulting in unburned fuel out the exhaust. Its that exhaust that burns your eyes.
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