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Old 06-05-2020, 05:42 PM   #1
BAChevyMan
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Choke wires?

So I just picked up an 86 scottsdale with an already installed eddelbrock 1407 carb a d intake. Its a rough start in the mornings because there is no choke installed. While I was wiring my stereo I noticed the choke fuse... so I was wondering if anyone can help me locate these wires comming out of the firewall. I have 2 optional wiring plans for the electric choke I am getting but theres a part of me just wanting figure out where the stock wires are.
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Old 06-06-2020, 07:37 AM   #2
Palf70Step
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Re: Choke wires?

Choke wire is normally a dark blue that actually runs to a second oil pressure sending unit. When there is good oil pressure it then allows the 12V to go thru a lt blue wire to the choke. If the second oil pressure sender is missing (which is the case a lot of times), I would just tap off that wire and run it to the choke. By the way, the wire colors are on my 81.

Found a view of the wiring harness
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Last edited by Palf70Step; 06-06-2020 at 07:52 AM.
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Old 06-06-2020, 10:38 AM   #3
BAChevyMan
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Re: Choke wires?

Quote:
Originally Posted by Palf70Step View Post
Choke wire is normally a dark blue that actually runs to a second oil pressure sending unit. When there is good oil pressure it then allows the 12V to go thru a lt blue wire to the choke. If the second oil pressure sender is missing (which is the case a lot of times), I would just tap off that wire and run it to the choke. By the way, the wire colors are on my 81.

Found a view of the wiring harness
Yeah, I cant even see the oil pressure switch... apparently its somewhere on the back of the engine, haven't checked yet. And I was just going to wire a choke like this...



until I saw a choke fuse. There should be 2 wires coming out of the firewall that I can just take and connect without having to do a bunch of extra work.
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Old 06-06-2020, 12:14 PM   #4
Axle
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Re: Choke wires?

The oil pressure switch for the choke is on the driver side of the block, towards the firewall.
if you see a connector hanging with a jumper wire on it, that used to go to that sender.
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