1978 ignition wire color code

[delta21]

I am trying to wire the computer for a tbi, I need to find a power source that has power in the on and start position.

edit; I think I figured out, I spliced into the blue with red stripe. Is this right, can someone who know's better check behind me??

 

[inkpot]

Howdy! I would think you could use any accessory that is switched thru the ignition. How about tapping into the power wire for your radio? John

 

[CruiserStuff]

The blue with red stripe is the wire I tap for my snowplow controls......sounds right to me.

 

[delta21]

Howdy! I would think you could use any accessory that is switched thru the ignition. How about tapping into the power wire for your radio? John

That would work but my radio cuts out during starting

 

[Pin_Head]

There are a number of blue wires with a red stripe. If it is the one from the ignition switch to the fuse block, this wire is not fused, so your computer will not be protected in case of a short. The black wire with yellow stripe from the engine fuse would be a better choice unless you need more than 15A. If you need more than 15A, run a new fuse at the ignition switch.

 

[CruiserStuff]

Great info.....I'm doin' that, Pin_Head!