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Scan Data

NOTE: Information contained in the following tables is typical of readings taken on vehicle with engine idling, upper radiator hose hot, closed throttle, transmission in Park or Neutral, closed loop status achieved and all accessories off (except as noted in tables). Data parameters are updated every 1 1/4 seconds. On systems using P-4 computers, parameter updates are more often. Not all devices and systems are used on all models and the following lists represent only the most commonly used parameters. For additional information, refer to owners manual furnished with tester.
PORT FUEL INJECTION

Tester Position Units Measured Nominal Value
A/C Clutch On/Off Off (On With A/C)
A/C Request Yes/No No/Yes (With Request)
AIR Divert Sol. On/Off On (Air To Switching Sol.); Off (Air To Atmosphere)
AIR Switching Sol. On/Off On (To Exhaust Manifold); Off (To Catalytic Converter)
BARO Volts 3-4.5
Battery Voltage Volts 13.5-14.5
Block Learn Counts 118-138 (128 Normal)
Canister Purge Sol. On/Off On/Engine Cold (Idle Some)
Clear Flood On/Off See Tester Manual
Coolant Fan On/Off Off below 216°F (102°C)
Coolant Temp. °C 85-105° (Norm. Temperature)
Crank RPM RPM 100-900
Cross Counts Counts 0-255EGR
Solenoid On/Off On When Energized
EGR Duty Cycle 0-100% 0/Closed-100/fully Open
Fan Relay On/Off On When Energized
Fan Request On/Off On With Request
Fuel Back-Up Yes/No Yes When Engaged
IAC Counts 0-50
Ignition/Crank On/Off On With Ignition/Crank
Injector Pulse Width Mil./Sec .8-3.0
INT (Integrator) Counts 110-145 (128 Normal)
Knock Retard (ESC) Counts 0-255
Knock Signal Yes/No Yes When Knock Exists
MAT °C 10-90°
MAP Volts 1 (Idle) to 4.5 (WOT)
Open/Closed Loop Status Ol/Cl Closed/Open During Extended Idle
O2 Sensor Millivolts 100 (Lean) To 999 (Rich)
P/N Switch P/N/RDL Park/Neutral
P/S Switch Norm/Hi Normal
PROM I.D. PROM # Original Factory Number
RPM RPM Spec. +/-25 RPM Drive (Auto.); Spec. +/-50 RPM Neut. (Man.)
Spark Advance No. Deg. Varies
TCC On/Off Off (On With Command)
TPS Volts 1.25 (Idle) to 5.0 (WOT)
Throttle Angle 0-100% 0 (Idle) To 100 (WOT)
Trouble Codes Code # No Codes
Upshift Light (Man. Trans.) On/Off Off
VSS or MPH MPH 0-Actual
Water Injection On/Off On When Injecting
1st Gear Switch On/Off On/1st Gear Only
3rd Gear Switch On/Off On/3rd & 4th Gear
4th Gear Switch On/Off On/4th Gear