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Wiring Tips and FAQ
Basic wiring tips and common wiring problems.
- Get a hotrod wiring reference book, they have lots of good tips and can answer your questions. Take a look
at C & L's Hot Rod Library.
- If you have or can get the factory wiring schematic get it, it can help in planning and understanding your vehicle wiring.
- Don't be in a hurry, plan your wire routes and take your time.
- Check your connections, bad connections are a source of a lot of wiring headaches.
- Make sure you have good ground connection. Bad grounds can cause a lot of unexpected and intermittent results.
- Don't expect to wire everything up and throw the switch. Check each circuit one at a time, this will allow you to work on one problem at a time. Maybe fixing several at once. (i.e. fixing a bad ground)
- Make notes and diagrams as you wire the vehicle, this will help you later when you add an accessory or change something.
- Keep the original harness, sometimes it's a good reference and you may be able salvage parts and connectors from it.
- Protect the wires, avoid sharp edges, use grommets when passing the wires through body panels and chassis components.
- Leave a "service loop" or slack in the wire near components. This will allow easier maintenance or changes later.
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Wiring - Frequently Asked Questions |
Q. Will the EZ wiring harness long enough to fit my pickup?
A. The harness from the fuse panel to the tail lights is 20 ft. I use the 21 circuit in my '56 F100.
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Q. How do you mount the mini fuse panel?
A. The Mini fuse panel has a base plate, Separate the base from the panel (2 snap locks), mount the base and snap the panel back in place.
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Q. What are the sizes of the EZ Wiring 21 Circuit and Mini Fuse Panels?
A. The 21 Circuit Panel is 5 1/2"W x 4 1/2"L X 3 1/2"D and the Mini fuse panel is 1 3/4"W x 4"L x 3 1/2"D.
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Q. What type of steering column connector does the EZ Wiring harness come with?
A. Included are 2 types of GM column connectors, both are shown on the right. The wires are terminated (lugs attached) but not put into the connector. The connector is separate and the wires can be put into any slot on the connector depending on how your column is wired. If you have to, you may use your own column connector but you may have to change the lugs.
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Q. Does the EZ wiring harness include any wiring for computers, TPI or EFI?
A. No, it is a basic universal harness.
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Q. What type of alternator connector is provided with the EZ Wiring Kits?
A. GM, 1973 to 1990.
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Q. Can I use these harnesses for my 6 volt system?
A. NO, the EZ Wiring harnesses are designed for 12 volt only.
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Q. Which should I choose, a black or the GM Color coded harness?
A. It's a personal choice, some say it's easier to troubleshoot the color harness, and some say the black harness looks better. All the EZ Wiring harnesses are labeled every 5 inches so that brings it back to a personal choice
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Q. How do I decide which harness I need for my street rod?
A. All the EZ Wiring harnesses will give you all the basics such as starting, charging, ignition, gauges and all the lighting for safety inspection. This includes high and low beam headlights, tail lights, park lights, turn signals, stoplights, and license light. If you have a very basic vehicle you can go with the 12 circuit. If you have power windows, power locks, electric fan or electric fuel pump, you would need to move up to the 21 circuit wiring harness.
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Q. Are the fuses the same physical size in the mini fuse panel?
A. No, the Mini Panel fuses are smaller, 7/16". The regular Panel fuses are 3/4".
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