LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

ignition

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Old Jun 25, 2010 | 10:38 AM
  #1  
Bails098's Avatar
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Joined: May 2007
Posts: 161
From: Barrie Canada
ignition

I have a 94 firebird LT1 i am popping the ignition fuse #11 in the fuses and relays box under in the engine compartment as soon as i turn the key forward one click. I am completely lost as to where i even need to start testing wires. I did do the vats by pass, i looked at the chart on shbox.com my key read 1125 i was told by a user on here to get a 1k and 100 ohm and they should be sufficient could this be the problem? If not where do i start looking? If i disconnect the coil wires the fuse does not pop.

Last edited by Bails098; Jun 25, 2010 at 11:33 AM.
Old Jun 25, 2010 | 11:50 AM
  #2  
Injuneer's Avatar
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From: Hell was full so they sent me to NJ
There is a diagram in your Owner's Manual that shows you what is on each fuse. The two devices shown for fuse #11 in the underhood box, per your Owner's Manual are the ignition coil and the ignition coil driver (IC Module). The pellet in the key wouldn't have anything to do with fuse #11 drawing excess current. The pellet is only read by the VATS module. You have a short in the coil, ICM or the wiring that connects from the fuse to them.

Shoebox has a wiring diagram:

http://shbox.com/1/95_ign_system_schematic.jpg

If you don't have an Owner's Manual, Shoebox also has a link to the online versions:

http://shbox.com/pdf/manuals.html
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