C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

hidden ignition fuse

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Old Mar 6, 2007 | 08:02 AM
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From: Troy Al
Default hidden ignition fuse

On the schematic of the ignition system. (1993 LT1), it shows a 10 amp fuse. This is in line with the pink wire from the B side of the coil (pnk 239) and is labled #11 u/h. Is u/h under the hood? #11 on the fuse panel in the interier is A 5 amp LH Illum. Where is the location of this fuse? This is associated with a no fire at the plugs or coil situation. Thanks!
(I can email the schematic, but didn't know how to post it)

Last edited by choopes; Mar 6, 2007 at 08:05 AM.
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Old Mar 6, 2007 | 08:24 AM
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Originally Posted by choopes
On the schematic of the ignition system. (1993 LT1), it shows a 10 amp fuse. This is in line with the pink wire from the B side of the coil (pnk 239) and is labled #11 u/h. Is u/h under the hood? #11 on the fuse panel in the interier is A 5 amp LH Illum. Where is the location of this fuse? This is associated with a no fire at the plugs or coil situation. Thanks!
(I can email the schematic, but didn't know how to post it)
I beleive it's next to the battery in a small black box. I had a "no-start" issue once on my 93 and it turned out to be corrosion on this fuse.

Eric
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Old Mar 6, 2007 | 08:24 AM
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There are fuses at the battery?
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Old Mar 6, 2007 | 09:04 AM
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From: Troy Al
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Thanks guys!
There are 2 black fuse boxes. One just to the right of the battery. No ignition fuses there. the other one. I had to pull the battery out to get too. There are 2 ignition fuses, but there 60 amps. Not the 10 amp jobber in the schematic. No visible fuse on the Pos. battery terminal that I can identify.
It seems like years ago I worked on a car that had a fusable wire. Not a fuse, but A wire built to fail. I think it was a Buick.
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Old Mar 6, 2007 | 11:14 AM
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From: SCMR Rat Pack'r Charter Member..Great Bend KS
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Originally Posted by choopes
There are 2 ignition fuses, but there 60 amps. Not the 10 amp jobber in the schematic. ....It seems like years ago I worked on a car that had a fusable wire. Not a fuse, but A wire built to fail. I think it was a Buick.
A 60A fuse should not be required for the ignition.

You are remembering the fuseable links that came on many car's ignition.

Larry
code5coupe
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Old Mar 6, 2007 | 01:55 PM
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This is the schematic from the Red Book 93 Helms Service Manual.



The 10 amp coil fuse is # 25 in the passenger side/end of the dash panel fuse box.

What manual are you using?
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Old Oct 3, 2020 | 07:11 PM
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There is a fuse box behind the display panel right on the dash
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Old Oct 3, 2020 | 09:32 PM
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Originally Posted by Kathi Dileo
There is a fuse box behind the display panel right on the dash

You replied to a thread from 2007.
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