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

not getting fuel?

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Old Jan 1, 2006 | 08:55 PM
  #1  
bluechevy194's Avatar
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From: stockton, ca
Car: 92 c1500
Engine: 355ci
Transmission: 700R-4
not getting fuel?

hey guys just got my engine back in my truck, its a 92 c1500, only problem is im not getting fuel to pulse out of my injectors, i know the fuel pump is working because i pulled the line off and fuel came out of the line when the engine was turned over, so im assuming its electrical, some type of sensor that controls the injectors, any suggestions?
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Old Jan 2, 2006 | 01:54 AM
  #2  
dimented24x7's Avatar
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Does the pump just run for two seconds and shut down when you turn the key to the on position, or does it turn back on while cranking the engine over?
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Old Jan 2, 2006 | 02:18 AM
  #3  
Fast355's Avatar
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Double check all your grounds, chassis grounding strap to block, make sure your distributer and ignition coil connections are good. Lack of a reference pulse will keep the ECM from opening the injectors. That could be a failed connection, shorted coil, bad pickup coil, faulty module, etc.
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Old Jan 2, 2006 | 02:26 AM
  #4  
bluechevy194's Avatar
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From: stockton, ca
Car: 92 c1500
Engine: 355ci
Transmission: 700R-4
i didnt crank the enine over, just turn it to the on position and it spit out fuel into the cup i had sitting under it, i was told it could be the fuel pump relay? ill take any advise possible or try anything because it sucks not having a vehicle, and yes i double check all my grounds, and im running msd ignition and coil if that makes any difference?
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Old Jan 2, 2006 | 06:46 AM
  #5  
dimented24x7's Avatar
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Sounds like the module is dead or not grounding properly and not giving any reference to the ecm, among other things. If the pump turns on for two seconds but doesnt come on while cranking then this is the likely problem.
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Old Jan 2, 2006 | 07:20 PM
  #6  
bluechevy194's Avatar
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From: stockton, ca
Car: 92 c1500
Engine: 355ci
Transmission: 700R-4
when u say "module", which part are u refering to?
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