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

One Injector not Spraying

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Old May 10, 2002 | 06:33 PM
  #1  
89firebird's Avatar
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Joined: Jul 2001
Posts: 86
Likes: 1
From: San Antonio, TX
Car: 89 Firebird Formula T-Top
Engine: SP383 FIRST Fuel Injection
Transmission: T56 Tremec Magnum
Axle/Gears: Moser 12 Bolt, 3.42 Eaton Posi
One Injector not Spraying

This sux, I'm stuck at work because my car won't run, any help is much appreciated.

The drivers side injector is not spraying any fuel. I went ahead and switched the electrical connections on the injectors, but the same one still doesn't work. So I'm assuming that it is getting a pulse. Fuses all look good. This happened to me last night, but went away as soon as I turned the car back on.

Anyone have any ideas what could be causing this? Any way to get this going, so I'm not stranded at work for eternity.

Hellllppppp!!!
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Old May 11, 2002 | 10:29 AM
  #2  
idrag2's Avatar
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Joined: Mar 2001
Posts: 548
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From: Texarkana, Texas, USA
Maybe the injector is clogged???? I have seen my boss tap on a injector and make it start working again.......The first time I saw he do this I thought he was Krazy!!!! But guess not....just my .02
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Old May 11, 2002 | 11:26 AM
  #3  
lonsal's Avatar
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From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Yes tapping can sometimes relieve a stuck injector. I went to a local shop yesterday in preperation for my bi-annual smog check and while there one of mine stopped working. We switched connectors and determined it to be electrical. I had soldered the wire a few years back where it got pinched between the spacer and the air cleaner and it broke there again. A quick re-solder and I was back on the road. You need to take the injector to a shop that is equipped to clean and test it. I'm fortunate that I am local to Turbo City. Good luck, Lon. PS: I failed the smog check for excess NOX.
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