Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

LinkBack Thread Tools Display Modes
Old 05-17-2013, 07:49 AM   #1
Registered User
Join Date: Apr 2011
Location: Quebec
Posts: 202
Power supply to activate fuel pump?

What kind of power supply do I need to activate the fuel pump? I'm in the process of changing the pump but the tank is full so I need to empty it. I have a DC power supply that can generate 3-4.5-6-7.5-9-12V up to 2000mA. Is it enought?

The other thing I have is a batterie charger.


wawa is offline   Reply With Quote
Old 05-17-2013, 08:31 AM   #2
Registered User
Join Date: Apr 2006
Location: Boston, MA
Posts: 221
The fuel pump needs a "clean" 12VDC source that can deliver at least 5 amps. Be careful with your battery charger as many of these just rectify the AC voltage and provide a rippled output to a battery -- this is OK for charging a battery but could cause problems to the pump.

paulv is offline   Reply With Quote
Old 05-18-2013, 06:27 AM   #3
Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,665
I use a fully charged car battery... (e.g., removed from the car you're working on, from another car, or the one under your workbench in the garage).
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor

Last edited by thstone; 05-18-2013 at 06:32 AM.
thstone is offline   Reply With Quote
Old 05-18-2013, 08:08 AM   #4
Registered User
Join Date: Apr 2011
Location: Quebec
Posts: 202
Thanks, that is what I decided to do, work perfectly.

wawa is offline   Reply With Quote
Old 05-18-2013, 03:44 PM   #5
Porsche "Purist"
Paul's Avatar
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,107
If the pump is dead, I remove the cover on the the top of the tank and use some clear plastic tubing to siphon the gas into gas cans. Best done with the car up in the air.

1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
Paul is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 03:22 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page