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ChrisTH Occasional Poster Location: Thailand Registered: September 2005	Re: fuel pump stops when hot (again) Tue, 11 October 2005 03:26 I talked to my garage yesterday, and YES, you can modify the pump to be multi speed. (their business is only conversions). The signal that you use depends on your ECU. In my case I have this option: Use the ACV signal (the manifold airflow control) That would be a simple circut with a Resistor and a bypass relay. The pump will run on low voltage until the ACV signal get high (some 4000+ rpm) and close the bypass relay. Then the pump is supplied full power. I have to do some testing to get the right Resistor value. Another option is to use the TT signal (but I dont remember if it is on in normal ECU work mode). That will give me signals ranging from 2 to 12 volts showing the throttle position. But in that case I would need a more complicated circut to control the Pump voltage and is probably not worth the effort. [Report message to a moderator]

	Subject	Poster	Date
	fuel pump stops when hot (again)	EVOSTi	Mon, 03 October 2005 09:44
	Re: fuel pump stops when hot (again)	sideshow	Mon, 03 October 2005 10:19
	Re: fuel pump stops when hot (again)	EVOSTi	Mon, 03 October 2005 10:41
	Re: fuel pump stops when hot (again)	ChrisTH	Mon, 03 October 2005 10:50
	Re: fuel pump stops when hot (again)	mrshin	Mon, 03 October 2005 14:08
	Re: fuel pump stops when hot (again)	shinybluesteel	Mon, 03 October 2005 14:36
	Re: fuel pump stops when hot (again)	EVOSTi	Tue, 04 October 2005 06:41
	Re: fuel pump stops when hot (again)	TurboRA28	Tue, 04 October 2005 23:31
	Re: fuel pump stops when hot (again)	EVOSTi	Wed, 05 October 2005 06:54
	Re: fuel pump stops when hot (again)	bunkyT18	Wed, 05 October 2005 08:23
	Re: fuel pump stops when hot (again)	EVOSTi	Wed, 05 October 2005 11:42
	Re: fuel pump stops when hot (again)	bunkyT18	Wed, 05 October 2005 12:06
	Re: fuel pump stops when hot (again)	EVOSTi	Wed, 05 October 2005 12:25
	Re: fuel pump stops when hot (again)	EVOSTi	Wed, 05 October 2005 12:34
	Re: fuel pump stops when hot (again)	xolent	Wed, 05 October 2005 13:10
	Re: fuel pump stops when hot (again)	shinybluesteel	Wed, 05 October 2005 13:38
	Re: fuel pump stops when hot (again)	ChrisTH	Wed, 05 October 2005 15:02
	Re: fuel pump stops when hot (again)	bunkyT18	Thu, 06 October 2005 01:31
	Re: fuel pump stops when hot (again)	bunkyT18	Thu, 06 October 2005 01:33
	Re: fuel pump stops when hot (again)	EVOSTi	Thu, 06 October 2005 10:56
	Re: fuel pump stops when hot (again)	shinybluesteel	Thu, 06 October 2005 13:45
	Re: fuel pump stops when hot (again)	ChrisTH	Fri, 07 October 2005 04:50
	Re: fuel pump stops when hot (again)	ChrisTH	Fri, 07 October 2005 05:19
	Re: fuel pump stops when hot (again)	ChrisTH	Fri, 07 October 2005 08:59
	Re: fuel pump stops when hot (again)	EVOSTi	Sat, 08 October 2005 01:31
	Re: fuel pump stops when hot (again)	ChrisTH	Sat, 08 October 2005 10:10
	Re: fuel pump stops when hot (again)	ChrisTH	Sat, 08 October 2005 14:43
	Re: fuel pump stops when hot (again)	EVOSTi	Sun, 09 October 2005 09:01
	Re: fuel pump stops when hot (again)	ChrisTH	Sun, 09 October 2005 11:21
	Re: fuel pump stops when hot (again)	EVOSTi	Mon, 10 October 2005 06:52
	Re: fuel pump stops when hot (again)	ChrisTH	Mon, 10 October 2005 08:29
	Re: fuel pump stops when hot (again)	ChrisTH	Tue, 11 October 2005 03:26
	Re: fuel pump stops when hot (again)	ChrisTH	Thu, 13 October 2005 14:27
	Re: fuel pump stops when hot (again)	EVOSTi	Sat, 15 October 2005 04:05
	Re: fuel pump stops when hot (again)	ChrisTH	Sat, 15 October 2005 04:20

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