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Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Scan Tool Usage >> Consult-II >> Data Monitor (SPEC) Mode

Data Monitor (SPEC) Mode

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For DATA MONITOR (SPEC) mode descriptions, see DATA MONITOR (SPEC) MODE DESCRIPTIONS  table.

DATA MONITOR (SPEC) MODE DESCRIPTIONS

Monitored Item Description
ENG SPEED [rpm] Indicates engine speed computed from crankshaft position sensor (POS) signal.
MAS A/F SE-B1 [V] The signal voltage of the mass airflow 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 Or B2 [%] 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.