does anyone know what the signal voltage should be from the main ecu to the fuel pump ecu?
since i have fitted the AEM ecu i have been having problems with the fuel pump feed,switch ignition on and the fuelpump primes for approx 5secs. crank engine over and the engine starts but the signal to the pump is then lost and the engine cuts out. i have to keep locking/unlocking the car and it then fires into life again and will run fine until the next time. have checked the voltage from the AEM ECU and its a 5VOLT output, would like to confirm if this is right before going further.