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

fuel pouring throu the injectors

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Old Dec 11, 2006 | 11:37 AM
  #1  
Glen Williams's Avatar
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Joined: Dec 2006
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From: swamp branch, ky
Car: 91 firebird
Engine: 305
Transmission: auto
fuel pouring throu the injectors

hey guys, i have a 91 305 tbi firebird. It started a few weeks ago not starting the right way... there was too much fuel flowing through the injectors, but i could unplug the injector and get it to start. last week, however, it went completely out and the injectors are dumping the fuel into the motor , and it won't start at all.... I changed the top of the throttle body, and the computer...
the injector change did nothing and the computer change did nothing..... it seems to me that the injectors aren't getting the Pulse that they usually get ... Any ideas????

By the way , I am getting spark to the plugs.... just a whole lot of gas flowing through the injectors...
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Old Dec 11, 2006 | 11:53 AM
  #2  
DLV555's Avatar
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Joined: Mar 2006
Posts: 359
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From: Findlay, OH USA
Car: 1987 Monte Carlo SS
Engine: 400 SBC
Transmission: 200-4R
Axle/Gears: 4.10
Make sure you don't have a pinched wire or something somewhere. Check the injector ground wires for a short to ground. That'll make them stay open.
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Old Dec 11, 2006 | 03:41 PM
  #3  
buell0303's Avatar
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Joined: Dec 2006
Posts: 63
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From: Palm Coast, Florida
Car: 91 V8 Camaro rs and 03 v6 mustang
Engine: 305 V8 TBI
Transmission: Manual 5 speed
Axle/Gears: stock
Had same problem

Are you making sure the injectors snap in. they should make a snap sound when there in properly. Also check the orings in the injectors mine where bad which made it leak more fuel then it should. but the only thing is my engine got wet and now the injectors are runing to rich. i don't know what it is
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