NISSAN: MIL ON W/DTC P0840, P0845, P0744, P1777. REPLACE THE CONTROL VALVE ASSEMBLY WITH PART LISTED; REFERENCE SECTION TM, CONTROL VALVE REMOVAL AND INSPECTION IN APPROPRIATE ESM; ERASE EEP ROM CALIBRATION DATA IN TCM AND ALLOW IT TO RECALIBRATE. ALTIMA, ROGUE, SENTRA. *PE