View Single Post
Old 02-28-2013, 05:45 PM   #13
SS Tim
Registered User
 
SS Tim's Avatar
 
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,507
Re: Anybody know what this is for ?

Quote:
Originally Posted by 71K20chevy View Post
My '71 has the same wire as well, I posed a topic on the forum quite some time ago and I think we all came to the conclusion it was for the TCS. Like said above, it's usually thrown away as it is just emission crap that makes the truck run poorly when it is not warmed up, if I recall.
While there is a TCS in many 71 applications it is too easy to dismiss any wire as smog related. If there is a wire question it needs to be identified against an applicable schematic. In this case it would be very easy to trace it back to the connector cavity to confirm.

Quote:
Originally Posted by 69gmcc10 View Post
Tim, what is the REF ACC FEED?
Actually I had not noticed it before nor seen if referenced. From the description it is an underhood igniton voltage reference power connector for testing that can also be used for an underhood accessory feed.
SS Tim is offline   Reply With Quote