Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

No power to starter after header swap

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Old 07-20-2014, 05:37 PM
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Car: 1989 Iroc Z 28
Engine: 305 TPI
Transmission: Auto
Axle/Gears: Stock
No power to starter after header swap



Just recently installed a set of long tube headers on the z. After the install I pulled the car in the garage and finished the exhaust install.

Went to fire it up now I get nothing no turn over or anything. I have no power on the purple wire at the starter and at the Safety switch (green / yellow wires). I have checked all fuses I can find inside the car and verified I am not getting a vats security issue. (not the greatest when it comes to electrical work)

After checking the forums I have traced the red wire / purple / grn-wht for the most part but cannot find them once they route behind the engine. Does anyone have some good pictures to show all the check points for the main feed to the inside?

But as it stands power to everything, but no turnover, no vats / security light, power at the battery and I can jump the starter manually without issue so I assume it is something in the red wire to fuse box is all I can figure at this point but just need a good visual of how it routes inside the engine bay and what fuses, relays, etc need checked.

305-TPI

Thanks in advance.

Last edited by bubbagump2001; 07-20-2014 at 05:43 PM.
Old 07-22-2014, 11:41 PM
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Re: No power to starter after header swap

I'm guessing you may have broken a wire while installing the exhaust. I'd look real hard in the area you were working. You pulled in, car was fine. You finished exhaust install, car won't crank.

How did you jump the starter manually?
Old 08-22-2014, 01:38 PM
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Car: 1989 Iroc Z 28
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Re: No power to starter after header swap

Used a push button starter. Disconnected the purple wire, had the ignition in the on position so the pump would have power then did a jumper from the battery. I've traced it down to the bulk main wires so something got pinched someplace just have to find the short.

Right now everything inside the cab is disconnected from the bay fuse block and I still have continuity between hot and ground on my meter so I've started to disconnect all points to trace it back.

I hope once I have no continuity between ground and hot with my meter I finally found it lol.
Old 08-22-2014, 10:14 PM
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Re: No power to starter after header swap

Let us know what it was when you find the problem.
Old 08-23-2014, 04:48 AM
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Re: No power to starter after header swap

there is a fusable link there may have pulled it out on accident good place to start
Old 08-24-2014, 08:34 AM
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Re: No power to starter after header swap

fusable link
Most likely, this...

The big red wires that feed power to the whole car, get it at the starter terminal where the batt cable goes. Each of them has a fusible link to protect the wiring from shorts. One or more of those prolly got damaged in the course of your header install.
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