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Home >> Geo >> 1997 >> Metro Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes 1.0 & 1.3L >> Self-Diagnostic System >> Scan Tool Data
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Scan Tool Data

NOTE: Information contained in the following tables is typical of readings taken on a vehicle with engine idling at normal operating temperature, throttle closed, transmission in Park or Neutral, system in closed loop status, and all accessories off (except as noted in tables). For additional information, see scan tool owner's manual.
SCAN TOOL DATA VALUES

Scan Tool Parameters (1) Typical Data Value
Air Conditioning OFF
BARO (2) 12.9-14.4 (88-89 kPa)
Battery Voltage 10-14 Volts
Closed Throttle Switch Idle (ON)
Desired Idle Speed 850 RPM
ECT (3) 185-203°F (85-95°C)
EGR Solenoid Vacuum Valve (4) OFF
EGR Bypass Solenoid (4) OFF
Electrical Load Signal (5) NO
Engine Speed 750-950
Engine Load 3-5%
Engine Cooling Fan (3) ON/OFF
EVAP Duty Cycle 0-100%
EVAP Density Trim 0-14
EVAP Vent Solenoid (6) ON/OFF
Fuel Cutoff Signal OFF
Fuel Injector PWM 0.8-2.3 mS
Fuel Pump ON/OFF
Fuel Tank Pressure Control Solenoid (7) ON/OFF
Fuel Tank Pressure (7)(8) 0.0" H2O
Fuel Tank Level (9) Varies
Fuel Trim (Long Term) (10) -15% - +15%
Fuel Trim (Short Term) (10) -20% - +20%
HO2S-1 (11) 50-950mV
HO2S-2 (11) 0-950mV
HO2S-1 Ready Yes
HO2S-2 Ready No
IAT (12) 82°F (28°C)
ISC Duty Cycle 20-40%
Loop Status Closed
MAP (Pressure) 4-7 psi (29-47 kPa)
MAP (Voltage) (13) 1.32-1.90 volts
Park/Neutral Position Switch Park Or Neutral
Power Steering Switch (14) ON/OFF
Spark Advance Adjust Test Switch OFF
Spark -1° - -18°
Starter Switch Released
Throttle Position Angle 7-18%
Throttle Position Sensor 0.42-1.15 Volts
Total Fuel Trim -35% - +35%
Vehicle Speed Zero MPH (Zero km/h)
(1) Scan tool parameters are with vehicle at idle, upper radiator hose hot, closed throttle, transaxle in Park or Neutral, computer controls in closed loop and accessories off.
(2) Varies with barometric pressure and altitude.
(3) Varies with engine coolant temperature.
(4) Canadian and Federal emissions only.
(5) With all electrical accessories off.
(6) Varies with coolant temperature. Is off when coolant temperature is less 176°F (80°C).
(7) Only on 1.3L with enhanced EVAP system.
(8) With fuel cap removed.
(9) Varies with amount of fuel in tank should be 70% with a full tank. Scan tool indicates 0" H2O when fuel tank pressure equals barometric pressure.
(10) Counts are 118-138 and vary.
(11) Varies within specification.
(12) Varies with underhood temperature.
(13) Varies with vacuum and barometric pressure.
(14) If equipped. OFF with steering wheel in straight-ahead position, ON with steering wheel turned.