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Electrical & Wiring Engine management systems, looms, switches, gauges, sensors, etc

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Old 15-03-2018, 02:41 PM   #1
JO08
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ECU / Fuel pump control

Does anyone knows what's the pin on S1 ECU that controls the fuel pump?

I know that the ECU receives the signal from CPS when crancking and then sends an signal to the main relay to power the fuel pump but I want to ditch the main relay and need to know wich ECU pin controls the pump.

Any help?
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Old 15-03-2018, 04:30 PM   #2
welshpug
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why do you want to ditch the relay? its a very reliable item.
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Old 16-03-2018, 04:54 PM   #3
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yes I want to ditch it cause I'm building a rally car and want all the relays inside the car. Also if any particular relay is faulty will be a lot easier to diagnose.
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