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Data Monitor (SPEC) Mode

WARNING: This page is about a different car, the 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

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

DATA MONITOR (SPEC) MODE DESCRIPTIONS

Monitored Item Description
MAS A/F SE-B1 [V] 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 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.
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