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all 4 Passenger side fuel injectors don't pulse

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Old Sep 10, 2010 | 09:58 PM
  #1  
mandre74's Avatar
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From: Fort Campbell
Car: 91 GTA
Engine: L98 350 TPI
Transmission: TH-350
Axle/Gears: 3:23 posi gears
all 4 Passenger side fuel injectors don't pulse

91 GTA 350 all 4 passenger side fuel injectors don't pulse, power on both wires going to injector. if one bank of the ECM isn't firing could there be a fuse blown for that bank and if so where would it be? or is the ECM just fried and needs replaced or can you just replace the one driver board thats fried?
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Old Sep 10, 2010 | 11:06 PM
  #2  
vetteoz's Avatar
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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: all 4 Passenger side fuel injectors don't pulse

Originally Posted by mandre74
. if one bank isn't firing could there be a fuse blown for that bank
Yes or if one injector shorted will take whole bank down
Disconnect one injector in the dead bank at a time and see if others fire
Check injectors resistance.All should be the same
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Old Sep 10, 2010 | 11:25 PM
  #3  
mandre74's Avatar
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From: Fort Campbell
Car: 91 GTA
Engine: L98 350 TPI
Transmission: TH-350
Axle/Gears: 3:23 posi gears
Re: all 4 Passenger side fuel injectors don't pulse

3 injectors read 16.9 and one 6.9 even with it unplugged the other 3 still don't work
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Old Sep 11, 2010 | 12:58 AM
  #4  
mandre74's Avatar
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From: Fort Campbell
Car: 91 GTA
Engine: L98 350 TPI
Transmission: TH-350
Axle/Gears: 3:23 posi gears
Re: all 4 Passenger side fuel injectors don't pulse

I feel dumb now, inj fuse was blown, i know i checked it once i don't know, I guess that is what i get for working with budweiser thanks vetteoz.
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Old Sep 11, 2010 | 09:05 AM
  #5  
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From: nj
Car: 89 iroc
Engine: l98
Transmission: tremec
Re: all 4 Passenger side fuel injectors don't pulse

Originally Posted by mandre74
3 injectors read 16.9 and one 6.9 even with it unplugged the other 3 still don't work
you still need injectors. The one at 6 ohms is shorted. It will keep blowing fuses or fry you ECU,
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Old Sep 11, 2010 | 04:19 PM
  #6  
mandre74's Avatar
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From: Fort Campbell
Car: 91 GTA
Engine: L98 350 TPI
Transmission: TH-350
Axle/Gears: 3:23 posi gears
Re: all 4 Passenger side fuel injectors don't pulse

ya i plan on getting some new ones when i put the new BBK intake on and looking at a turbo that goes under the trunk area in place of the muffler and run the intake up from there rear to it.
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