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
Registered
 
Join Date: Jun 2005
Posts: 43
Cold Start Valve Polarity ?

I had to replace the cold start valve Bosche Plug and now that it's installed Im wondering if by chance I reversed the leads on the plug from original.
Does not seem to be working like it did previously
Does matter as long as wiring is correct from starter and TTS?

tnx all!

Old 12-19-2023, 10:02 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
Join Date: Mar 2002
Location: Philadelphia, PA
Posts: 12,626
Garage
No Polarity…………..

Quote:
Originally Posted by ray40 View Post
I had to replace the cold start valve Bosche Plug and now that it's installed Im wondering if by chance I reversed the leads on the plug from original.
Does not seem to be working like it did previously
Does matter as long as wiring is correct from starter and TTS?

tnx all!


Ray,

The Bosch CSV has no specific polarity. It works either way. If you have OEM plug, it only goes one specific orientation.

Tony
Old 12-19-2023, 11:39 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
Join Date: Jun 2005
Posts: 43
thanks Tony much appreciated!
I did jump it out without the pump on and heard a click from the CSV so I suppose its working just fine
Old 12-19-2023, 12:58 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
Join Date: Mar 2002
Location: Philadelphia, PA
Posts: 12,626
Garage
Pressure Test…….

Quote:
Originally Posted by ray40 View Post
thanks Tony much appreciated!
I did jump it out without the pump on and heard a click from the CSV so I suppose its working just fine


Ray,

You need fuel pressure to test a good CSV plus 12 volt. Clicking sound is not enough to evaluate a good CSV. It might make the “clicking” noise but if the spray pattern is not good, then the CSV is defective.

Tony
Old 12-19-2023, 01:27 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
Join Date: Jun 2005
Posts: 43
Quote:
Originally Posted by boyt911sc View Post
Ray,

You need fuel pressure to test a good CSV plus 12 volt. Clicking sound is not enough to evaluate a good CSV. It might make the “clicking” noise but if the spray pattern is not good, then the CSV is defective.

Tony
Understood and Tnx again
I am back in business CSV seem to be working fine now

Old 12-19-2023, 04:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Reply


 


All times are GMT -8. The time now is 12:55 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 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.