81 cabby cold start grounds

Post electrical issues and questions here

Moderators: kamzcab86, CalAltaDubber

Post Reply
User avatar
roadtech
Posts: 41
Joined: Sun Feb 10, 2013 5:44 pm
What year is your cabby?: 1981
Do you own a Cabriolet?: Yes
Location: Cumming, GA

81 cabby cold start grounds

Post by roadtech » Tue Mar 19, 2013 5:31 pm

Ok the cold start grounds and test ports have been fixed. the electrical connection for the cold start and the aux air reg are no where to be found. I have a piece of harness with both connectors but can find a spot where they were removed on my car, any suggestions where to look.
Attachments
IMG_0051.JPG
the vacuum butcher, will need the idle air solenoids (know where I can get a couple) to fix the vacuum mess
IMG_0047.JPG
here is the harness I have. not sure where to splice it in?
IMG_0046.JPG
grounds and test port installed not sure what the connector with the 2 white wires is comes from under the manifold near the o2 sensor.

User avatar
kamzcab86
Queen and Popette of Cabbydom
Posts: 1277
Joined: Wed Sep 11, 2002 3:54 pm
What year is your cabby?: 1986
Location: Arizona
Contact:

Re: 81 cabby cold start grounds

Post by kamzcab86 » Wed Mar 20, 2013 1:25 am

:shock: What on earth did the previous owner do to your car?! Wow... :screwy:

First, your car only ever had one idle boost valve, and it was specifically for the A/C system:

Image

That black plug just hanging out should go to that missing idle boost valve (white one). Although, those wire colors are a tad odd, so it's possible it goes to the AAR (don't recall what that connector looks like).

As you can see from that diagram, your vacuum hoses are all screwed up. So, when you go back to the junkyard, grab all that you can, including the entire brake booster line, from the intake manifold to the booster (be careful with it; those plastic ports behind the white check valve are fragile these days and break easily). That "L" hose that runs from the valve cover to the intake manifold should have a reducer inside. If you're putting the boost valve back in for the A/C, you'll have a straight hose off the valve cover connected to a T-fitting -- I'm not sure what those cars had for a reducer, either the reducer was built into the hose, or it uses the same reduction T-fitting the 1.8L engines use.

As for reconnecting the AAR (aux air regulator) and CSV, I'll have to consult my other manual in case wire colors changed over the years, which isn't handy right now... stay tuned.

User avatar
roadtech
Posts: 41
Joined: Sun Feb 10, 2013 5:44 pm
What year is your cabby?: 1981
Do you own a Cabriolet?: Yes
Location: Cumming, GA

Re: 81 cabby cold start grounds

Post by roadtech » Wed Mar 20, 2013 6:05 pm

Thank you a great diagram for vac routing. I am not sure if I want to leave the AC. I have a few more pictures see notes on the pictures. I found where the aux air and cold start were cut from the harness, buried under the heater hoses, should be a fun place to try and splice. I saw something about a control relay for them, is that on the fuse panel or located some where else? Maybe I can route from that

I see a large hose that comes from the charcoal canister (see picture ) is cut???

I found a solenoid on the firewall, see picture. What is it?
Attachments
IMG_0052.JPG
solenoid I found on firewall ???
IMG_0055.JPG
large tube from charcoal canister
IMG_0054.JPG
cut harness for cold start and aux air

Post Reply