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Old 06-06-2010, 11:01 PM   #1
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94 z28 won't turn anything on with key

last month i had a fan short circuit and it obviously burned up some wiring on my steering column cause i can put the key in and turn it to try and start it and nothing will happen i have traced a pink wire that runs down the column and have put a toggle switch on it it's the only way to turn fuel pump on and everything. the key will not turn anything on but the radio and make it so i can use the power windows that's it. but with the toggle in the on position and key in i can start car any suggestions on how to be rid of toggle switch. i have put new fan motor on and for one week i didn't have to use the toggle the key worked properly
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Old 06-06-2010, 11:31 PM   #2
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See if there's anything in Shoebox's writeup on the ignition switch that helps:

http://shbox.com/ignsw/ign_switch_repl.html
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94 Formula A3+1: 381ci all-forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / Comp Cams custom solid roller / TH400 + GearVendors OD / Strange 12-bolt - 4.11's / 300-shot N2O / Spohn suspension / 6-pt roll bar with integrated SFC's / AutoMeter instrumentation / MoTeC M48Pro engine management system / a few other odds 'n ends. 800HP/800LB-FT at the flywheel.
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Old 06-07-2010, 07:08 AM   #3
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There are also some other schematics on my site. Unless you had something out of the ordinary wired up, no fan short circuit should have cause any wiring damage in the column.
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Old 06-07-2010, 08:00 AM   #4
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I actually sounds like the fusible links...in rare cases one melting one can take out a good one nearby.

The fusible links are located on the passenger inner fender and attach to the (+) terminal that's covered by the red cap.

Take a look at SHBOX's page: http://shbox.com/1/battery_cable_routing1.jpg THose small wires attached to item 14 are the fusible links.

Good luck!
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Old 06-07-2010, 05:27 PM   #5
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thanks for the help it's just weird it fixed itself for a week or so and then went back to being messed up again it seems like this car one thing happens then something else
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Old 06-07-2010, 10:05 PM   #6
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so tried everything and nothing really came of it but on the first link given on the last picture the red wire with blue connector that's how my connector looked after the fan shorted out and is the wire that i had to put toggle on. the fans were also straight wired to the fuse block under hood the a/c fuse any suggestions from here
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Old 06-07-2010, 11:18 PM   #7
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Sounds like your custom fan wiring is pulling too much current from where it is not supposed to. The factory fan circuits use relays to keep from doing that. I think I would return the fans to stock wiring, if I were you. Schematics on my site show the factory wiring.
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Old 06-08-2010, 05:36 PM   #8
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o really thanks alot they also removed the ect in the head when i got it besides the gm dealer where else could i get it cause don't that control when they come on rightor is it the one on the water pump i just put new one on water pump
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Old 06-08-2010, 05:54 PM   #9
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Quote:
Originally Posted by chrisblanton View Post
o really thanks alot they also removed the ect in the head when i got it besides the gm dealer where else could i get it cause don't that control when they come on rightor is it the one on the water pump i just put new one on water pump
Hard to decipher.... but I think you are saying the coolant temp sensor in the driver's side head is missing - hope they put a plug in the hole. No, it doesn't "control when they come on". The sensor in the head is only for the dash gauge. Any auto parts store can sell you a single-wire coolant temp sensor replacement that will fit and work.

The sensor in the water pump tells the PCM the coolant temp. The PCM controls the fans based on this temp.
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