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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 2307 (Engine Control System - Introduction) >> Trouble Diagnosis >> CONSULT-II Function (ENGINE) >> Data Monitor (Spec) Mode >> Monitored Item
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Monitored Item

WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
MONITORED ITEMS DESCRIPTION

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/FA LPHA-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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