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best way to shut off fuel pumps?


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bjamick 
Member - Posts: 5
Member spacespace
Joined: April 19, 2010
Location: Alabama, United States
Posted: June 09, 2011 at 11:39 AM / IP Logged  
This is for a turbo car. It has 2 fuel pumps one will only turn once under boost. This will be done via Hobbs switch. Also I would like to add in a fuel pressure safety switch that will shut off both pumps if there is a failure. The ECM supplies 12V to the pump that will be for just driving around no boost.
So what would be the best way that I can shut off power to both pumps if the fpss see's a problem?
93 mustang coupe
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: June 09, 2011 at 1:59 PM / IP Logged  
The ECM should control the pumps.
Otherwise pumps & valves are controlled by the charge light circuit, else an ignition sensing circuit.

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