take the fuel pump out and get the black and red wire and touch the black to (-)and red one to(+) on a good battery and it will shoot fuel out and if it dose the fuel pump is good. then
check the ecu. take you ecu out and put it on a other 240sx like yours.if the car turns on with your ecu is good. but do not put some ones ecu and put it on your car.because it mite blow.
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