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Home >> Nissan-Datsun >> 2006 >> Altima SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System - Introduction (Qr25DE)) >> Trouble Diagnosis >> CONSULT-II Function (ENGINE) >> Data Monitor (Spec) Mode >> Monitored Item

Monitored Item

WARNING: This page is about a different variant/trim than selected.
DATA MONITOR (SPEC) MODE

Monitored item [Unit] ECM INPUT SIGNALS MAIN SIGNALS Description Remarks
ENG SPEED [rpm] x  
  • Indicates the engine speed computed from the signal of the crankshaft position sensor (POS).
 
MAS A/F SE-B1 [V] x x
  • The signal voltage of the mass air flow sensor specification is displayed.
  • When engine is running specification range is indicated.
B/FUEL SCHDL [msec]    
  • "Base fuel schedule" indicates the fuel injection pulse width programmed into ECM, prior to any learned on board correction.
  • When engine is running specification range is indicated.
A/F ALPHA-B1 [%]   x
  • The mean value of the air-fuel ratio feedback correction factor per cycle is indicated.
  • When engine is running specification range is indicated.
  • This data also includes the data for the air-fuel ratio learning control.
NOTE:
  • Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.