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| RX-7 3rd Gen Specific (1993-2002) RX-7 1993-2002 Discussion including performance modifications and Technical Support Sections. |
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| RX-7 3rd Gen Specific (1993-2002) RX-7 1993-2002 Discussion including performance modifications and Technical Support Sections. |
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03-17-2011, 11:13 AM
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#9 |
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WNC Tour Guide
Join Date: Feb 2008
Location: WNC
Posts: 780
Rep Power: 18  |
To bring this thread back to life and provide more information that i've discovered while looking into FD wiring..
The Fuel Pump Relay is used to force 12v to the fuel pump (by passing the Circuit opening relay and fuel pump resistor). From my research, this happens in hi-boost. The Circuit Opening Relay is for sending power to the fuel pump through the Fuel pump resistor... The EGI main from the wiring diagrams appears to send power to the ECU. The Circuit Opening Relay gets a signal from the ECU to send power to the fuel pump through the previously mentioned Fuel Pump resistor... So... to prevent the fuel pump from engaging during start up, pulling the Circuit Opening Relay might be sufficient... if the ECU doesn't send a signal to the Fuel pump relay to build pressure... so maybe pull both relays... or EGI main...
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Last edited by lt1_fd3s; 03-17-2011 at 11:15 AM. |
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