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Home >> Nissan-Datsun >> 2007 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction >> Trouble Diagnosis >> CONSULT-II Function (ENGINE) >> Data Monitor (Spec) Mode >> Monitored Item
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Monitored Item

DATA MONITOR MODE

Monitored item [Unit] ECM INPUT SIGNALS MAIN SIGNALS Description Remarks
ENG SPEED [rpm] x x
  • Indicates the engine speed computed from the signal of the crankshaft position sensor (POS) and camshaft position sensor (PHASE).
  
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]   x
  • "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 [%]
A/F ALPHA-B2 [%]		   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.
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