Suzuki SY413 Service Manual page 3450

6-26 ENGINE GENERAL INFORMATION AND DIAGNOSIS
SCAN TOOL DATA DEFINITIONS
CALC LOAD (CALCULATED LOAD VALUE, mg/str)
Engine load value calculated from throttle position and engine speed. Load is referred to in terms of fuel quantity
per stroke.
COOLANT TEMP. VOLTAGE (ENGINE COOLANT TEMPERATURE VOLTAGE, V)
It is detected by engine coolant temp. sensor.
ENGINE SPEED (rpm)
It is computed by reference pulses from crankshaft position sensor.
INJECTION TIMING (START OF INJECTION, _)
Start of injection control is performed by calculating an optimal desired start of injection and closing the loop on
it. ECM controls the injection start timing.
THROTTLE POSITION SENSOR VOLTAGE (TP SENSOR VOLT, V)
The Throttle Position Sensor reading provides throttle valve opening information in the form of voltage. This in-
formation is used for correction, such as enrichment correction during acceleration.
The voltage reading should increase as the throttle is opened. 0 V indicates a broken or shorted sensor.
BATTERY VOLTAGE (V)
This parameter indicates battery positive voltage inputted from main relay to ECM.
NEEDLE SENSOR VOLTAGE (V)
The ECM detects the start of needle movement by triggering on the rising edge of the needle movement sensor
signal.
BAROMETRIC SENSOR VOLTAGE (V)
This parameter represents a measurement of barometric air pressure and is used for altitude correction of the fuel
injection quantity.