How do I tap onto a power source for this?

[Zhan]

I bought this custom midpipe with a custom electric cut-out a few months ago and finally I've installed it: http://www.msprotege.com/forum/showthread.php?t=123617336

However, I am not really sure how to tap into a power supply. I'm not sure how much power the motor can handle, but the directions he gave me say that I can tap into the car battery. So, what power supply should I tap into, and what gauge wires would I need?

Thanks.

 

[Zhan]

Okay, I did some reading, and I think I should tap into the ignition harness? If so, what's the difference between the accessory wire (black/white) and the blue ignition wire(s)?

 

[ForceFed]

Dude...Stop....Get someone to help you before you hack something important up.

 

[Zhan]

Stop what? Tell me how this can hack up my car.

 

[Brian MP5T]

Use a relay.

 

[Zhan]

Use a relay.

Do you mean I need a relay for going directly from the battery or for from the ignition harness? I don't think I will tap directly from the battery because it would constantly be drawing power. And what gauge wire do you suppose I need?

Thanks! (thumb)

 

[Fede_italiano]

Do you mean I need a relay for going directly from the battery or for from the ignition harness? I don't think I will tap directly from the battery because it would constantly be drawing power. And what gauge wire do you suppose I need?

Thanks! (thumb)

Do not tap into the battery because even if you gave only 12V you will have high current and hight current will need an 8 AWG (as an example) and it might damage the electric motor.
You should check the fuse box for a 12 volts constant source, use a inline fuse, and make sure that you use the appropriate wire based on the amount of current you are drawing.
If you have a multimeter you should check the 5volt source that is powering the 02 sensor and if the motor does not have an high impedance you could probably tap there.

Use a multimeter and check before you cut.

 

[Brian MP5T]

Do you mean I need a relay for going directly from the battery or for from the ignition harness? I don't think I will tap directly from the battery because it would constantly be drawing power. And what gauge wire do you suppose I need?

Thanks! (thumb)

The Relay has 4 Posts.

1 Comes From The BAttery
1 Goes To The Motor
1 Goes to Earth
1 Goes to a Switch (That switch is hooked to the Ign)

This way the motor can take whatever power it needs and it will not put a load on the ignition system.

What was said about making sur the wire is large.. That is the point of the relay, they are like $10.00

 

[TheMAN]

sounds like you're an electrical n00b

there's 2 things you can do:
1) pay someone to do this s*** for you and hope he doesn't **** your s*** up
2) learn more about electrical s*** first (like buying a book and reading it) before attempting to DIY

DO either one of them or risk ******* the s*** out of your car

 

[Brian MP5T]

^^ Agrered. I side with Edwin on this.. If you are asking this type of question, you should really seek out help from someone who knows in your area and watch.

 

[Zhan]

The Relay has 4 Posts.

1 Comes From The BAttery
1 Goes To The Motor
1 Goes to Earth
1 Goes to a Switch (That switch is hooked to the Ign)

This way the motor can take whatever power it needs and it will not put a load on the ignition system.

What was said about making sur the wire is large.. That is the point of the relay, they are like $10.00

So I can't just tap only to one of the ignition wires like with a turbo-timer?

I'm not sure what I can "**** up" when I'm not going to be cutting any wires at all. At most I guess I can blow a fuse.

 

[Brian MP5T]

A Fuse is designed to save you from a big problem. It's better to not Test things and rely on the fuse to save you..