Engine Scan Tool Data List. Oldsmobile Shelby Series 1 1999

For 1990-2009 cars

The Engine Scan Tool Data List contains all engine related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.

Use the Engine Scan Tool Data List only after the following is determined:

• | A Powertrain On-Board Diagnostic System Check is completed.

• | No Diagnostic Trouble Codes (DTCs).

• | On-board diagnostics are functioning properly.

Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents values that would be seen on a normally running engine.

Important: A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms for diagnosis.

The column labeled Data List indicates where a parameter can be located on the scan tool. Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:

All : The Parameter is in all data lists indicated below.
Eng 1: Engine Data 1 List
Eng 2: Engine Data 2 List
EE: Enhanced EVAP Data
FF/FR: Freeze Frame/Failure Records
FT : Fuel Trim Data List
MF: Misfire Data List

Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values
--- | --- | --- | ---
Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off
A/C Compressor Cycling | Eng 1, 2 | Closed/Open | Closed/Open
A/C Relay Command | Eng 1, 2, EE, MF | On/Off | Off
A/C Request | Eng 1, 2, EE, MF | Yes/No | No
Air Fuel Ratio | FF, FR | Ratio | 14.7:1
BARO | Eng 1, FT, FF, FR | kPa/Volts | 65-104 kPa/3.5-4.9 Volts (Varies w/Altitude)
Clutch Switch | Eng1, 2, MF | Depressed/Released | Varies
Cold Startup | Eng1, 2, EE | Yes/No | Varies
Current Gear | Eng 2, FF, FR | Transmission Gear Position | 1
Cycles of Misfire Data | MF | 0-100 Counts | Varies
Cylinder Mode Misfire Index | MF | Counts | Varies
DTC Set This Ignition | Eng 1, 2, EE, FT, MF | Yes/No | No
Desired IAC Airflow | Eng 1 | 0-64 g/s | Varies
Desired Idle Speed | Eng 1, FF, FR | RPM | PCM Controlled
ECT | Eng 1, 2, EE, FT, MF, FF, FR | -39° to 140°C (-38° to 284°F) | 85° to 113°C (185° to 235°F)
Engine Load | Eng 1, EE, MF, FF, FR | 0-100% | 1-4% @ Idle 5-9% @ 2500 RPM
Engine Run Time | Eng 1, 2, EE, FF, FR | Hrs, Min, Sec | Varies
Engine Speed | All | 0-10,000 RPM | Varies
EVAP Canister Purge | Eng 1, 2, EE, FT, FR | 0-100% | 0-25%
EVAP Canister Vent Valve | Eng 1, 2, EE, FT | Not Venting/Venting | Venting
Fail Counter | FR | Counts | Varies
Failures Since First Fail | FR | Counts | Varies
FC Relay 1 | Eng 1, 2, EE | On/Off | Depends on engine coolant temperature and A/C Pressure
FC Relay 2 and 3 | Eng 1, 2, EE | On/Off | Depends on engine coolant temperature and A/C Pressure
FT Diag. Inhibit | FT | Enabled/Disabled | Varies
Fuel Gauge Control | Eng 2, EE | 0-100% | Varies
Fuel Level Sensor | Eng 2, EE | 5-0 Volts | 0.7-2.5 Volts
Fuel Tank Level Remaining | Eng 2, EE, FT | 0-19.8 gal./0-75 L | Varies
Fuel Tank Level Remaining | Eng 2, EE, FT | 0-100% | Varies
Fuel Tank Pressure | Eng 1, 2, EE | -32.7 to 14.0 mm/Hg (-17.5 to 7.5 in/H2O) | Varies
Fuel Tank Pressure | Eng 2, EE | 0-5.0 Volts | Varies
Fuel Tank Rated Capacity | Eng 2, EE, FT | 19.8 gal./75 L | 19.8 gal./75 L
Fuel Trim Cell | Eng 1, FT | 0-23 | 16, 17, 20
Fuel Trim Learn | Eng 1, 2, EE, FT | Enabled/Disabled | Enabled (may Toggle)
Generator L Terminal | Eng 1, 2 | Active/Inactive | Active
HO2S Bank 1 Sensor 1 | Eng 1, FT | Millivolts | 10-1,000 and Varying
HO2S Bank 1 Sensor 2 | Eng 1, FT | Millivolts | 10-1,000 mv and Varying
HO2S Bank 2 Sensor 1 | Eng 1, FT | Millivolts | 10-1,000 mv and Varying
HO2S Bank 2 Sensor 2 | Eng 1, FT | Millivolts | 10-1,000 mv and Varying
IAC Position | Eng 1 | Counts | Varies
IAT | Eng 1, 2, EE, FT | -39° to 140°C (-38° to 284°F) | Varies
Ignition 1 | Eng 1, 2, EE | 0-25 Volts | 11.5-14.5
Inj. PWM Average Bank 1 | Eng 2, EE, FT, FF, FR | Milliseconds | 1-4 ms
Inj. PWM Average Bank 2 | Eng 2, EE, FT, FF, FR | Milliseconds | 1-4 ms
Knock Retard | Eng 1, EE, FT | 0 degrees-10degrees | 0 degrees
Long Term FT 1 Average | FT | Percentage | Near 0%
Long Term FT 2 Average | FT | Percentage | Near 0%
Long Term FT Bank 1 | Eng 1, 2, EE, FT, FF, FR | Percentage | Near 0%
Long Term FT Bank 2 | Eng 1, 2, EE, FT, FF, FR | Percentage | Near 0%
Loop Status | Eng 1, 2, EE, FT MF, FF, FR | Open/Closed | Closed
MAF | Eng 1, 2, EE, FT, MF, FF, FR | Grams Per Seconds (g/s) | 5-9 g/s @ Idle (depends on altitude) 20-26 g/s @ 2,500 RPM (depends on altitude)
MAF Frequency | Eng 2 | 0-31,999 Hz | Varies
MAP | Eng 1, 2, EE, FT, FF, FR | kPa/Volts | 20-48 kPa/1.0-2.0 V (varies w/altitude)
MIL | Eng 1, 2, EE, FT, MF | Off/On | Off
Mileage Since DTC Cleared | Eng 2 | km/Miles | Varies
Mileage Since First Failure | FF, FR | km/Miles | Varies
Mileage Since Last Failure | FR | km/Miles | Varies
Mileage Since MIL Request | FF | km/Miles | Varies
Misfire Current #1-#8 | MF | 0-200 Counts | 0 Counts
Misfire History #1-#8 | MF | 0-65,535 Counts | 0 Counts
Misfiring Cylinder | MF | Prim. Cyl# 0-8 Sec. Cyl# 0-8 | 00000000 prim. 00000000 sec.
Misfire Revolution Status | MF | Reject/Accept | Varies
Not Run Counter | FR | Counts | Varies
PCM Reset | Eng 1, 2, MF | Yes/No | No
PCM/VCM in VTE Fault | Eng 2 | Yes/No | No
Pass Counter | FR | Counts | Varies
Rough Road Sensor | Eng 1, 2, MF | Volts | 2.5 V
Revolutions With Misfire | MF | Counts | 0 counts
SHRT FT Average 1 | FT | Percentage | Near 0%
SHRT FT Average 2 | FT | Percentage | Near 0%
Short Term FT Bank 1 | Eng 1, 2, EE, FT, FF, FR | Percentage | Near 0%
Short Term FT Bank 2 | Eng 1, 2, EE, FT, FF, FR | Percentage | Near 0%
Spark | Eng 1, 2, EE, FT, MF | Degrees | Varies
Start Up ECT | Eng 1, FF, FR, EE | C°/F° | Varies
Total Misfire Current Count | MF | Counts | 0 counts
Total Misfire Failures Since First Fail | MF | 0-65,535 | 0
Total Misfire Passes Since First Fail | MF | 0-65,535 | 0
TP Sensor | Eng 1, 2 | 0-5.0 Volts | 0.4-0.9 V
TP Angle | Eng 1, 2, EE, FT, MF, FF, FR | 0-100% | 0%
VTD Auto Learn Timer | Eng 2, FF, FR | Active/Inactive | Inactive
VTD Fuel Disabled until Ignition Off | Eng 2 | Yes/No | No
Vehicle Speed | Eng 1, 2, EE, FT, FF, FR | km/h mph | 0
VTD Fuel Disabled | Eng 1, 2, FF, FR | Active/Inactive | Inactive
Warm-Ups w/o Emission Faults | Eng 2 | 0-255 Counts | Varies
Warm-Ups w/o Non-Emission Faults | Eng 2 | 0-255 Counts | Varies