I am not sure about Porsche, but on the Mercedes it has a circuit to detect ignition pluses and turns off fuel pump if engine is not running.
Trampas -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, October 16, 2006 4:23 PM To: mercedes@okiebenz.com Subject: Re: [MBZ] Fuel pump relay > <<How much did the relay cost, if you don't mind me asking? I got one > replaced > a few years ago in a 86 190E and it was about AU$500,......>> > Dog my cats!! I bought a DME/fuel pump relay as a spare for my Porsche a few years back. Cost me $21.00 US. Just two relays in one can with a common 12V input. The original 23 year old unit is still amping and volting away. RLE _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com