Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Sr20det e5-Ecu pin missing- (ecu backup)

OnTheChip · 08-06-2019, 10:38 AM

Pin 46 is for backup power to ECU RAM while the ignition switch is off. It keeps the DTC flags, drive cycle counters, TPS closed voltage, and long term fuel trim tables "alive". It's not absolutely necessary for running the engine.

08-06-2019, 10:38 AM	#2
OnTheChip Zilvia Junkie Join Date: May 2013 Location: Burgaw, NC Posts: 311 Trader Rating: (0)	Pin 46 is for backup power to ECU RAM while the ignition switch is off. It keeps the DTC flags, drive cycle counters, TPS closed voltage, and long term fuel trim tables "alive". It's not absolutely necessary for running the engine. __________________ NismotronicSA - Speed-Density Tuning for Nissans