The only P1051 codes I could find...
FORD: P1051 - Brake Switch Signal Missing or Improper
INFINITI: P1051 - Air/Fuel Ratio Sensor Meter
DODGE: P1051 - Idle RPM Hi
AUTOZONE: P1051 - Air/Fuel Ratio Sensor Meter G35, QX56
UPDATE: I finally found a Nissan related P1051 A/F Sensor Heater Recall problem...
Service Bulletins Nissan Cars
