Any idea what is related to the injector postive signal on the s12-et loom. there is no pulse on the injector plug positive on crank over. Also nothing on the cold start injector plug. The negatives are constant with engine ignition off. is there a related sencor that if malfuntioning would cause this to stop working

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Ecu diagnostics show no problems. Apparently the car did not brake down, it just failed to start after being stood for 2 days