Suzuki Engine 2002 GRAND VITARA SQ625, Руководство по обслуживанию

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6-30 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G16/J20 ENGINES)
MAF (MASS AIR FLOW RATE, g/s, lb/min.)
It represents total mass of air entering intake manifold which is measured by mass air flow sensor.
CALC LOAD (CALCULATED LOAD VALUE, %)
Engine load displayed as a percentage of maximum possible load. Value is calculated mathematically using the
formula : actual (current) intake air volume
÷
maximum possible intake air volume x 100%.
INJ PULSE WIDTH (FUEL INJECTION PULSE WIDTH, msec)
This parameter indicates time of the injector drive (valve opening) pulse which is output from ECM (but injector
drive time of No.1 cylinder for multi port fuel injection).
BATTERY VOLTAGE (V)
This parameter indicates battery positive voltage inputted from main relay to ECM.
THROTTLE POS (ABSOLUTE THROTTLE POSITION, %)
When throttle position sensor is fully closed position, throttle opening is indicated as 0% and 100% for full open
position.
TP SENSOR VOLT (TP SENSOR OUTPUT VOLTAGE, V)
Throttle Position Sensor reading provides throttle valve opening information in the form of voltage.
OXYGEN SENSOR B1 S1 (HO2S-1 OUTPUT VOLTAGE, V)
It indicates output voltage of HO2S-1 installed on exhaust manifold (pre-catalyst).
OXYGEN SENSOR B1 S2 (HO2S-2 OUTPUT VOLTAGE, V)
It indicates output voltage of HO2S-2 installed on exhaust pipe (post-catalyst). It is used to detect catalyst dete-
rioration.
FUEL SYSTEM (FUEL SYSTEM STATUS)
Air/fuel ratio feedback loop status displayed as one of the followings.
OPEN : Open loop-has not yet satisfied conditions to go closed loop.
CLOSED : Closed loop-using oxygen sensor(s) as feedback for fuel control.
OPEN-DRIVE COND : Open loop due to driving conditions (Power enrichment, etc.).
OPEN SYS FAULT : Open loop due to detected system fault.
CLOSED-ONE O2S : Closed loop, but fault with at least one oxygen sensor-may be using single oxygen sensor
for fuel control.
TOTAL FUEL TRIM (%)
The value of total fuel trim is obtained by putting values of short term fuel trim and long term fuel trim together.
MAP (MANIFOLD ABSOLUTE PRESSURE, mmHg, kPa)
This value indicates how much correction is necessary to keep the air/fuel mixture stoichiometrical.
It is detected by manifold absolute pressure sensor.
BAROMETRIC PRESS (kPa, inHg)
This parameter represents a measurement of barometric air pressure and is used for altitude correction of the
fuel injection quantity and IAC valve control.