View Single Post
AndreasK AndreasK is offline
Registered
 
AndreasK's Avatar
 
Join Date: Oct 2016
Posts: 233
Garage
Quote:
Originally Posted by T77911S View Post
on the diagram you got from me just swap the 2 lines going to the WUR.

vacuum should be on the TOP port to the WUR which goes to manifold vacuum . if you have the 033 WUR.
you should be able to blow thru the TTV when it has power, after about 20sec, and you should not be able to blow thru it when cold.

you can just bypass the TTV for now if you have doubts.
mine went bad and I just bypassed it. it is nice to have as it makes the cold starts a little richer and can prevent some backfiring when first started.
Excellent! I´ll try this tonight. If TTV passes inspection I´m down to spark plugs. But I will be surprised if my plugs are causing the backfiring.
__________________
--------
1977 911s
Old 06-28-2018, 06:20 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #19 (permalink)