Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Certified User
 
billjam's Avatar
 
Join Date: Aug 2007
Location: Perth, Western Australia
Posts: 2,003
Garage
Removing aircon wiring

On my 88 Carrera, I am fitting a Classic Retrofit electric AC system and I'd love to get rid of some (all!) of the redundant wiring for the original factory system.
The original harness seems to wind its way through the front end of the car but it keeps disappearing into areas where I can't really see if it is a totally separate harness or not.

Before I start pulling it apart even more, can someone confirm that the AC harness is or is not a separate item that can be removed without interfering with other electrics?

__________________
Bill
1988 Carrera - 3.6 engine (with ITBs, COPs, MS3X) and a whole set of turbo body panels waiting in the attic.
Day job ... www.sspowdercoat.com.au
Memories: '68 912, '72 911T, '80 911SC, '84 911, '85 930, '86 930, '87 911
Old 01-18-2020, 03:20 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Stranger on the Internet
 
patkeefe's Avatar
 
Join Date: Apr 2004
Location: Bradenton, FL
Posts: 3,198
I am pretty sure it is all separate, IIRC. It consists of two knobs to the dash (thermoswitch and evap blower speed), a switch wire to the compressor and a power wire to one of the dash knobs. However, it may be different in 88 MY, but I doubt it. You may have a condenser fan also in the mix.

Does your wiring diagram show any cross connections?
__________________
Patrick E. Keefe
78 SC
Old 01-18-2020, 09:01 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
kinein's Avatar
 
Join Date: Mar 2011
Location: inland empire
Posts: 2,982
Garage
Send a message via Yahoo to kinein
billjam,

I just pulled my ac out and unfortunately some of the wiring from the knob is integrated with the harness that goes through the firewall. I would love to delete it.
__________________
1966 912 with 2.2 911 motor
1986 wide body 911
1995 993 Polar Silver
Old 01-18-2020, 10:20 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Certified User
 
billjam's Avatar
 
Join Date: Aug 2007
Location: Perth, Western Australia
Posts: 2,003
Garage
Pat,
On the wiring diagrams there aren't any connections as such, except to power supply, but I can't tell from the diagrams if any of the AC wiring runs in the same harness as other wires.
However it looks like kinein has found what I suspected ... the AC wiring isn't completely separate.

It is tempting to just cut as much as possible and cap all the wires I no longer need, but that is kinda irreversible!

Thanks guys.
__________________
Bill
1988 Carrera - 3.6 engine (with ITBs, COPs, MS3X) and a whole set of turbo body panels waiting in the attic.
Day job ... www.sspowdercoat.com.au
Memories: '68 912, '72 911T, '80 911SC, '84 911, '85 930, '86 930, '87 911
Old 01-18-2020, 02:56 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Stranger on the Internet
 
patkeefe's Avatar
 
Join Date: Apr 2004
Location: Bradenton, FL
Posts: 3,198
Cool. Bill
I think my SC may have been aftermarket with OEM parts. Do you have a separate fuse for the AC in your MY?
__________________
Patrick E. Keefe
78 SC
Old 01-18-2020, 03:12 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered
 
Join Date: May 2012
Posts: 20
Garage
So Bill what did you eventually find out? As soon as the production backlog is over I should get delivery of my Classic Retrofit AC system for my 88. I would like to take the heater control dial/switch that is inbetween the seats and see if I could use the evap blower switch for it instead. Then put the Classic Retrofit AC button where the old A/C thermo switch is/was located.
Old 07-10-2020, 03:32 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Certified User
 
billjam's Avatar
 
Join Date: Aug 2007
Location: Perth, Western Australia
Posts: 2,003
Garage
All the original a/c wiring in my car was integrated with the rest of the wiring harness, so it couldn't be separated without removing the whole harness from the car. I ended up just coiling the unused wiring and tucking it away out of harm's way in a couple of locations.
From memory, I think the only part of the original wiring that is used in the new setup is the fan speed wiring.
__________________
Bill
1988 Carrera - 3.6 engine (with ITBs, COPs, MS3X) and a whole set of turbo body panels waiting in the attic.
Day job ... www.sspowdercoat.com.au
Memories: '68 912, '72 911T, '80 911SC, '84 911, '85 930, '86 930, '87 911
Old 07-11-2020, 09:47 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered
 
Join Date: Sep 2014
Location: Melbourne, Australia
Posts: 87
In my case (which is 82 SC) most of the AC wiring is tangled with the original one.
Old 07-12-2020, 12:34 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered
 
Join Date: May 2012
Posts: 20
Garage
Thanks

Old 07-12-2020, 11:43 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 05:46 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2020 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.