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Home >> Geo >> 1994 >> Tracker Base, 1.6 U, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> Scan Tester Data
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Scan Tester Data

NOTE: Information contained in the following table is typical of readings taken on vehicle with engine idling, upper radiator hose hot, throttle closed, transmission in Park or Neutral, closed loop status achieved and all accessories off (except as noted in tables). Not all devices and systems are used on all models. For additional information, see tester owner's manual.
TYPICAL DATA VALUES

Tester Position Units Measured Nominal Value
A/C Request (1) Yes/No No
A/C Switch (2) On/Off Off
BARO (1) Volts/kPa 4.00 (98)
Charging EFF1 (2) % 10
Desired Idle RPM ECM Controls (Varies)
EGR Gas Temp. °F (°C) 140-145 (60-65)
EGR Solenoid On/Off Off
Eng. Coolant Temp. °F (°C) 176-194 (80-90)
Engine Speed RPM 750-850
Fuel EVAP Purge (2) % 0
Fuel EVAP VSV (1) On/Off Off
Fuel Pump (2) On/Off On
HO2S Millivolts 10-900
Idle Switch On/Off On
Injector Pulse Width Mil/Sec 1.1-1.6
Intake Air Temp. (1) °F (°C) 149-167 (65-75)
ISC Adjust Monit % 0
ISC Air Flow L/Min 25-40
L.T. Fuel Trim Counts 118
MAP (1) Volts/kPa 1.56 (39)
Mass Air Flow (2) g/S 3.1
MPH MPH 0
O2 Activation (2) Act/Deact Activate
Park/Neutral Pos P/N/RDL P/N (A/T)
Park/Neutral Pos P/N/RDL RDL (M/T)
Power Steering Sw On/Off Off
Rich/Lean Stat Rich/Lean Switches
Spark Advance ° 5-15
S.T. Fuel Trim Counts 127
System Voltage Volts 14.0-14.5
Throt Open Sol (1) On/Off Off
Throttle Angle ° 0
Throttle Position Volts .85-.95
Time From Start (1) Sec Counts 0-510
(1) TBI (Federal) only.
(2) MFI (Calif. & New York) only.