Thread: Engine Bay Ignition Wire?

Anyone know of an ignition on wire I can tap or how I can run my own fuse? I plan on hooking up some LED's and I want them to turn on with the car but since there on the headlights I dont want to run wires through the firewall. Any ideas?

I already ran a harness for my hids but i need an ignition switched source for my leds.

Yes sir.

Cruise control module.......

the brown wire should be hot in run.

10 A fuse for the circuit.

Wiper motor......

Yellow wire hot in accy or run.

pink to transmission is hot in run, 10 A.

pink to PCM is hot in run, 10 A.

pink to evap vent solenoid is hot in run, 10 A.

And thats all i've got...

Get yourself something with wiring diagrams.

It makes life easy.

NOw if only those wires were in the engine bay, I would be set.

Originally Posted by chamilton89

NOw if only those wires were in the engine bay, I would be set.

Cruise module is on the strut tower
Wiper motor under the cowl, wiring runs out from cabin through firewall up to cowl area.
Transmission is next to the engine
PCM is either in the airbox or sitting on the driverside inner fender area.
Evap soleniod is on the motor
The motor is next to the trans.

All are in the engine bay, which is why they were suggested to you.

Personally though..I'd suggest you go to the fuse box on the passenger strut tower and find a good ign circuit, then run a relay for the led's. That way if you add more later you ensure there's no worry about popping a fuse for a critical circuit.

Originally Posted by BillBoost37

Cruise module is on the strut tower
Wiper motor under the cowl, wiring runs out from cabin through firewall up to cowl area.
Transmission is next to the engine
PCM is either in the airbox or sitting on the driverside inner fender area.
Evap soleniod is on the motor
The motor is next to the trans.

All are in the engine bay, which is why they were suggested to you.

Personally though..I'd suggest you go to the fuse box on the passenger strut tower and find a good ign circuit, then run a relay for the led's. That way if you add more later you ensure there's no worry about popping a fuse for a critical circuit.

Yeah, I was looking into just adding a relay as well, just using the ign control wire from the interior circuit block, I just don't wan to have to run another wire through the firewall, such a PITA. Thats why I was looking for a wire in the engine bay already to tap, then run a relay so I can draw all the power I like without worrying about blowing the circuit. Ill look into tapping the cruise control module. Shouldn't be difficult.

but aren't you going to pull your power from the fuse box? If so..why not find an ign wire in the box to keep both your connections nice and close instead of across the engine bay?

Originally Posted by BillBoost37

but aren't you going to pull your power from the fuse box? If so..why not find an ign wire in the box to keep both your connections nice and close instead of across the engine bay?

FrOm what I've been reading as well as been Looking at my wiring diagrams for the car, the fuse box under the hood is hot at all times. I would love to add a circuit an fuse to that panel but I want an ign switched hot. To do that I have to run a new circuit in the interior fuse block. I would do this but I hate running another wire through the firewall. There inlies my problem. Since I'm only look to draw about 400mA I don't mind pulling from any ign switched wire, just would prefer it being under the hood.