LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2007 >> Impreza WRX STi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (Diagnostics) (STI) >> Subaru Select Monitor >> Operation >> Read Current Data For Engine (Normal Mode)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Read Current Data For Engine (Normal Mode)

  1. On the «Main Menu» display screen, select {Each System Check}.
  2. On the «System Selection Menu» display screen, select {Engine Control System}.
  3. Select the [OK] after the information of engine type has been displayed.
  4. On the «Engine Diagnosis» display screen, select the {Current Data Display/Save).
  5. On the «Data Display Menu» screen, select the {Data Display}.
  6. Using the scroll key, scroll the display screen up or down until the desired data is shown.
CURRENT DATA CHART FOR ENGINE (NORMAL MODE)

Remarks Display Unit of measure Note (at idling)
Engine load Engine Load % 21.0%
Engine coolant temperature signal Coolant Temp. °C or °F 80 - 100°C or 176 - 212°F
A/F correction 1 A/F Correction #1 % -10 - +10%
A/F learning 1 A/F Learning #1 % -15 - +15%
Intake manifold absolute pressure Mani. Absolute Pressure mmHg, kPa, inHg or psig 220 - 275 mmHg, 29.5 - 37 kPa, 8.7 - 10 inHg or 4.2 - 5.3 psig
Engine speed signal Engine Speed rpm 700 rpm (Agree with the tachometer indication)
Meter vehicle speed signal Meter Vehicle Speed km/h or MPH 0 km/h or 0 MPH (at parking)
Ignition timing signal Ignition Timing deg +17.0 deg
Intake air temperature signal Intake Air Temp. °C or °F 20 - 50°C or 68 - 122°F
Amount of intake air Mass Air Flow g/s or lb/m 3.6 g/s or 0.48 lb/m
Throttle opening angle signal Throttle Opening Angle % 3.0 - 3.2%
Rear oxygen sensor voltage Rear O2 Sensor V 0 - 1.0 V
Battery voltage Battery Voltage V 12 - 15 V
Mass air flow voltage Air Flow Sensor Voltage V 1.0-1.7V
Injection 1 pulse width Fuel Injection #1 Pulse ms 1.2 - 2.2 ms
Knock sensor correction Knock Correction deg 0.0 deg
Atmospheric pressure Atmospheric Pressure mmHg, kPa, inHg or psig (Atmospheric pressure)
Intake manifold relative pressure Mani. Relative Pressure mmHg, kPa, inHg or psig (Intake manifold absolute pressure - barometric pressure)
Fuel tank pressure signal Fuel Tank Pressure mmHg, kPa, inHg or psig +8.8 mmHg, +1.2 kPa, +0.4 inHg or +0.2 psig
Acceleration opening angle signal Accel. Opening Angle % 0.00%
Fuel temperature signal Fuel Temp. °C or °F +21°C or 70°F
Fuel level signal Fuel Level V 0 - 5V
Primary supercharged pressure control signal Primary Control % 0.0%
Purge control solenoid duty ratio CPC Valve Duty Ratio % 0 - 25%
Tumble generator valve RH opening signal TGV Position Sensor R V 0.44
Tumble generator valve LH opening signal TGV Position Sensor L V 0.48
Fuel pump duty ratio Fuel Pump Duty % 33%
AVCS advance angle amount RH WT Adv. Ang. Amount R deg 0 deg
AVCS advance angle amount LH WT Adv. Ang. Amount L deg 0 deg
Oil flow control solenoid valve duty RH (AVCS) OCV Duty R % 9.4%
Oil flow control solenoid valve duty LH (AVCS) OCV Duty L % 9.4%
Oil flow control solenoid valve current RH OCV Current R mA 40-100 mA
Oil flow control solenoid valve current LH OCV Current L mA 40-100 mA
A/F sensor current value 1 A/F Sensor #1 Current mA -20 - 20 mA
A/F sensor resistance value 1 A/F Sensor #1 Resistance a 27 - 35 Ω
A/F sensor output lambda 1 A/F Sensor #1 - 1.00
A/F correction 3 A/F Correction #3 % 0.00%
A/F learning 3 A/F Learning #3 % 0.00%
Throttle motor duty Throttle Motor Duty % -10%
Throttle power supply voltage Throttle Motor Voltage V 12 - 15 V
Sub throttle sensor voltage Sub-throttle Sensor V 1.52 V
Main throttle sensor voltage Main-throttle Sensor V 0.66 V
Sub accelerator sensor voltage Sub-accelerator Sensor V 0.68 V
Main accelerator sensor voltage Main-accelerator Sensor V 0.66 V
Secondary air supply piping pressure signal Secondary air supply piping pressure mmHg, kPa, inHg or psig 765 mmHg, 102 kPa, 30.1 inHg or 14.8 psig
Secondary airflow signal Secondary airflow amount g/s or lb/m 0.00 g/s or 0.00 lb/m
Memory vehicle speed Memorized Cruise Speed km/h or MPH 0 km/h or 0 MPH
Estimated cumulative driving distance Estimated Cumulative Driving Distance km -
#1 cylinder roughness monitor Roughness Monitor #1 - 0
#2 cylinder roughness monitor Roughness Monitor #2 - 0
#3 cylinder roughness monitor Roughness Monitor #3 - 0
#4 cylinder roughness monitor Roughness Monitor #4 - 0
AT/MT identification terminal AT Vehicle ID Signal - AT/MT
Test mode terminal Test Mode Signal - U check
Neutral position switch signal Neutral Position Switch - Neutral
Soft idle switch signal Soft Idle Switch Signal - At idle
Ignition switch signal Ignition Switch - ON input
Power steering switch signal P/S Switch - OFF input (At OFF)
Air conditioning switch signal A/C Switch - OFF input (At OFF)
Starter switch signal Starter Switch - OFF input
Rear oxygen monitor Rear O2 Rich Signal - Rich/Lean
Knocking signal Knock Signal - None
Crankshaft position sensor signal Crankshaft Position Sig. - Provided
Camshaft position sensor signal Camshaft Position Sig. - Provided
Rear defogger switch signal Rear Defogger SW - OFF input (At OFF)
Blower fan switch signal Blower Fan SW - OFF input (At OFF)
Light switch signal Light Switch - OFF input (At OFF)
Air conditioner compressor relay output signal A/C Compressor Signal - OFF output (At OFF)
Radiator fan relay 1 signal Radiator Fan Relay #1 - OFF output (At OFF)
Radiator fan relay 2 signal Radiator Fan Relay #2 - OFF output (At OFF)
PCV hose assembly diagnosis signal Blow-by Leak Connector - Connected
Pressure control solenoid valve signal PCV Solenoid - OFF output (At OFF)
Tumble generator valve output signal TGV Output - None
Tumble generator valve drive signal TGV Drive - Opening direction
Drain valve signal Vent Control Solenoid - OFF output (At OFF)
ETC motor relay signal ETC Motor Relay - ON
Clutch switch signal Clutch Switch - OFF (At OFF)
Stop light switch signal Stop Light Switch - OFF (At OFF)
SET/COAST switch signal SET/COAST Switch - OFF (At OFF)
RES/ACC switch signal RESUME/ACCEL SW - OFF (At OFF)
Brake switch signal Brake Switch - OFF (At OFF)
Main switch signal Main Switch - OFF (At OFF)
Secondary air pump relay signal Secondary Air Pump Relay - OFF (At OFF)
Secondary air combination valve relay 1 signal Secondary Air Combination Valve Relay 1 - OFF (At OFF)
NOTE: For detailed operation procedure, refer to the " SUBARU SELECT MONITOR OPERATION MANUAL ".