Engine Scan Tool Data List. Cadillac Concours 1997

For 1990-2009 cars

## Engine Scan Tool Data List Values

Table 1: | Engine 1 Data Values
Table 2: | Engine 2 Data Values
Table 3: | Engine 3 Data Values
Table 4: | Fuel Trim 1 Data Values
Table 5: | Fuel Trim 2 Data Values
Table 6: | Misfire Data Values

### Typical Scan Data Values

Use the Typical Scan Data Values table only after the following is determined:

• | 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 Typical Scan Tool Data Values represent values that would be seen on a normally running engine.

Only the parameters listed below are referenced in this service manual for use in diagnosis. For further information on using the scan tool to diagnose the PCM and related sensors, refer to the applicable reference section listed below. If all values are within the typical range described below, refer to Symptoms section for diagnosis.

The column labeled Data List indicates where a parameter can be located on the Scan Tool. The following is a description of each term listed:

• | Eng 1 = Engine 1 Data List

• | Eng 2 = Engine 2 Data List

• | Eng 3 = Engine 3 Data List

• | FT 1 = Fuel Trim 1 Data List

• | FT 2 = Fuel Trim 2 Data List

• | Misfire = Misfire Data List

The values specified for Cold Idle and Hot Idle are based on approximate outside temperatures of 16°C (60°F) at 900 feet above sea level. The values specified for Cold Key On and 55 Cruise are based on approximate outside temperatures of 27°C (81°F) at 900 feet above sea level. Due to the wide range of readings possible for some parameters the values can range outside the values specified under certain conditions.

#### Engine 1 Data Values

For Cold Key On, Cold Idle and Hot Idle: Vehicle in PARK, A/C turned OFF, no power steering load, all ACC.s OFF, Brake Pedal Released. For 55 MPH Cruise: Vehicle in Drive 4, A/C turned ON and no power steering load, compare data after driving for approximately 1 mile
Scan Tool Parameter | Units Displayed | Data List | Cold Key On | Cold Idle | Hot Idle | 55 MPH Cruise
--- | --- | --- | --- | --- | --- | ---
Engine Speed | RPM | Eng 1 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
Desired Idle | RPM | Eng 1 | 920 | 700 to 1200 | 550 to 675 | 720
MAF | gms-sec | Eng 1 | 0.0 | 9.8 to 11.0 | 5.0 to 6.0 | 25
TP Sensor (V,°) | V/° | Eng 1 | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V / 9.3°
ECT | °C | Eng 1 | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
IAT | °C | Eng 1 | Close to Outside Air Temp. | -20°C to 50°C | 0°C to 90°C | Close to Outside Air Temp.
MAP (kPa, V) | kPa/V | Eng 1 | 98 kPa 4.67 v | 30 to 50 kPa 1.50 v @ 38 kPa | 30 to 50 kPa 1.50 v @ 38 kPa | 55 kPa 2.35 v
BARO (kPa, V) | kPa/V | Eng 1 | 98 kPa 4.67 v | 85 to 103 kPa | 85 to 103 kPa | 97 kPa 4.63 v
TPS Normalized | %/° | Eng 1 | 0% / 0.0° | 0% / 0.0° | 0% / 0.0° | 8% / 6.7°
Engine Load | % | Eng 1 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
Engine Speed | RPM | Eng 1 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
IAC Position | counts | Eng 1 | 164 | Varies | 30 to 80 | 128
Injector PWM Bn 1 | ms | Eng 1 | 0.0 | 3.75 to 4.50 | 3.20 to 3.75 | 5.3
Injector PWM Bn 2 | ms | Eng 1 | 0.0 | 3.75 to 4.50 | 3.20 to 3.75 | 5.0
HO2S Bn1 Sen. 1 | mV | Eng 1 | 36 | Varies | Varies | Varies
HO2S Bn2 Sen. 1 | mV | Eng 1 | 45 | Varies | Varies | Varies
Rich to Lean Status Bn 1 Sen 1 | Lean/Rich | Eng 1 | Lean | Varies | Varies | Varies
Rich to Lean Status Bn 2 Sen 1 | Lean/Rich | Eng 1 | Lean | Varies | Varies | Varies
HO2S Bn1 Sen. 2 | mV | Eng 1 | 40 | Varies | Varies | Varies
HO2S Bn1 Sen. 3 | mV | Eng 1 | 93 | Varies | 600 mV or more | 600 mV or more
Rich to Lean Status Bn 1 Sen 2 | Lean/Rich | Eng 1 | Lean | Varies | Varies | Varies
Rich to Lean Status Bn 1 Sen 3 | Lean/Rich | Eng 1 | Lean | Varies | Varies | Varies
Fuel Trim Cell | Number | Eng 1 | 0 | 16 | 16 | 1
Fuel Trim Learn | Disabled/Enabled | Eng 1 | Disabled | Disabled | Enabled | Enabled
Shrt Term FT Bn 1 | % / Counts | Eng 1 | 0% / 128 | -2.0% to 2.0% | -3.0% to 3.0% | Varies
Long Term FT Bn 1 | % / Counts | Eng 1 | 0% / 128 | 15% to 25% | 15% to 25% | Varies
Shrt Term FT Bn 2 | % / Counts | Eng 1 | 0% / 128 | -2.0% to 2.0% | -3.0% to 4.0% | Varies
Long Term FT Bn 2 | % / Counts | Eng 1 | 0% / 128 | 15% to 25% | 15% to 25% | Varies
Loop Status | Open/ Closed | Eng 1 | Open | Varies | Closed | Closed
Engine Run Time | Hr./min. | Eng 1 | 0:00:00 | Varies | Varies | Varies
MIL | Off/On | Eng 1 | On | Off | Off | Off
Ignition 1 | V | Eng 1 | 12.0 | 12.5 | 12.5 | 12.5
High Elec. Load | No/Yes | Eng 1 | No | No | No | No
Gen. F Terminal | % | Eng 1 | 100% | Varies | Varies | 40%
FP Relay | Off/On | Eng 1 | Off after 2 seconds | On | On | On
FP Volt Feedback | V | Eng 1 | 0.0 | 13.0 to 14.5 | 13.0 to 14.5 | 13.5
Cam Pulse | No/Yes | Eng 1 | No | Varies | Varies | Varies
IC Mode | PCM/ICM | Eng 1 | ICM | PCM | PCM | PCM
Spark | ° | Eng 1 | - 15° | Varies | Varies | - 39°
Engine Speed | RPM | Eng 1 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
Knock Retard | ° | Eng 1 | 0.0° | 0.0° | 0.0° | 0.0°
K.S. Activity | No/Yes | Eng 1 | No | Varies | Varies | No
Knock Too Long | No/Yes | Eng 1 | No | No | No | No
Knock Counter | Counts | Eng 1 | 0 | 0 | 0 | 0
MPH | MPH/ km/h | Eng 1 | 0 | 0 | 0 | 55
Throttle at Idle | No/Yes | Eng 1 | Yes | Yes | Yes | No
PNP | -R-OD21/ P-N---- | Eng 1 | P-N | P-N | P-N | R-OD21
PSP Switch | Normal/ Hi Press. | Eng 1 | Normal | Normal | Normal | Normal
TCC Brake Switch | Released/ Applied | Eng 1 | Released | Released | Released | Released
Ext Travel Brake | Released/ Applied | Eng 1 | Released | Released | Released | Released
Engine Load | % | Eng 1 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
TCC Slip Speed | RPM | Eng 1 | 0 | +15 to +50 | +15 to +50 | +15
Commanded EGR | % | Eng 1 | 0% | 0% | 0% | 44%
Actual EGR Pos. | % | Eng 1 | 0% | 0% | 0% | 45%
EGR Closed Valve Pintle Position | V | Eng 1 | 0.65 to 0.80 | 0.65 to 0.80 | 0.65 to 0.80 | 0.65 to 0.80
EGR Pintle Pos. | V | Eng 1 | Should match Closed Valve Position | Should match Closed Valve Position | Should match Closed Valve Position | 2.20 (@ 44%)
Actual EGR Pos. | % | Eng 1 | 0% | 0% | 0% | 45%
Ignition 0 | V | Eng 1 | 12.1 | 13.0 to 14.0 | 13.0 to 14.0 | 13.0 to 14.0
Ignition 1 | V | Eng 1 | 12.0 | 12.5 | 12.5 | 12.5
Ignition Status | Normal / Low | Eng 1 | Normal | Normal | Normal | Normal
Ignition 1 | V | Eng 1 | 12.0 | 12.5 | 12.5 | 12.5

#### Engine 2 Data Values

For Cold Key On, Cold Idle and Hot Idle: Vehicle in PARK, A/C turned OFF, no power steering load, all ACC.'s OFF, Brake Pedal Released. For 55 MPH Cruise: Vehicle in Drive 4, A/C turned ON and no power steering load, compare data after driving for approximately 1 mile)
Scan Tool Parameter | Units Displayed | Data List | Cold Key On | Cold Idle | Hot Idle | 55 MPH Cruise
--- | --- | --- | --- | --- | --- | ---
Engine Speed | RPM | Eng 2 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
MPH | MPH/ km/h | Eng 2 | 0 | 0 | 0 | 55
MAF | gms/sec | Eng 2 | 0 | 9.8 to 11 | 5.0 to 6.0 | 25.0
TP Sensor (V,°) | V | Eng 2 | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V / 9.3°
ECT | °C/ °F | Eng 2 | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
Start Up ECT | °C/ °F | Eng 2 | Varies | Varies | Varies | Varies
IAC Position | Steps | Eng 2 | 164 | Varies | 30 to 80 | 128
Desired Idle | RPM | Eng 2 | 920 | 700 to 1200 | 550 to 675 | 720
Loop Status | Open/ Closed | Eng 2 | Open | Varies | Closed | Closed
Engine Run Time | Hr./min. | Eng 2 | 0:00:00 | Varies | Varies | Varies
MAP (kPa, V) | kPa/V | Eng 2 | 98 kPa 4.67 V | 30 to 50 kPa 1.50 V @ 38 kPa | 30 to 50 kPa 1.50 V @ 38 kPa | 55 kPa 2.35 V
TP Angle | % | Eng 2 | 0% | 0% | 0% | 9%
HO2S Bn 1 Sen. 1 | mV | Eng 2 | 36 | Varies | Varies | Varies
HO2S Bn 2 Sen. 1 | mV | Eng 2 | 45 | Varies | Varies | Varies
EVAP Vacuum Sw. | No Flow/ Purging | Eng 2 | No Flow | Varies | Varies | Purging
EVAP Solenoid. | % | Eng 2 | 0% | Varies | Varies | Varies
Air / Fuel Ratio | :1 | Eng 2 | 7.5:1 | Varies | 14.5 to 14.9 | 14.7:1
Power Enrichment | Inactive/ Active | Eng 2 | Inactive | Inactive | Inactive | Inactive
Engine Load | % | Eng 2 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
TP Sensor (V,°) | V/° | Eng 2 | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V / 9.3°
Traction Control | Inactive/ Active | Eng 2 | Inactive | Inactive | Inactive | Inactive
Des. Torque Lvl | % | Eng 2 | 100% | 100% | 100% | 100%
Non-Driven Wheel Speed | MPH/ km/h | Eng 2 | 0-2 | 0-2 | 0-2 | 50-60
Traction Control Delivered Torque | % | Eng 2 | 0% | 13 to 18% | 15 to 25% | 22%
Service Spark Retard | ° | Eng 2 | 0 | 0 | 0 | 0
Ref. V Low | V | Eng 2 | -0.2 to 0.3 | -0.2 to 0.3 | -0.2 to 0.3 | -0.2 to 0.3
IC Mode | PCM/ICM | Eng 2 | ICM | PCM | PCM | PCM
4X Ref. Counter | Counts | Eng 2 | 0 | 8 | 8 | 8
Ign. Cycle Cntr | Counts | Eng 2 | Varies | Varies | Varies | Varies
A/C Relay | Off/On | Eng 2 | Off | Off | Off | On
Ignition 1 | V | Eng 2 | 12.0 | 12.5 | 12.5 | 12.5
FC Relay 1 | Off/On | Eng 2 | Off | Off | Varies | Varies
FC Relay 2 and 3 | Off/On | Eng 2 | Off | Off | Varies | Varies
ECT | °C | Eng 2 | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
Outside Air Temp | °C/ °F | Eng 2 | Varies | Varies | Varies | Varies
Engine Oil Level | Normal/Low | Eng 2 | Normal | Normal | Normal | Normal
Engine Oil Life | % | Eng 2 | Varies | Varies | Varies | Varies
Trans. Oil Temp. | °C/ °F | Eng 2 | Close to ECT temp. | -20°C to 50°C | 90°C to 130°C | 90°C to 110°C
Trans. Oil Life | % | Eng 2 | Varies | Varies | Varies | Varies
Shift Solenoid 1 | Off/On | Eng 2 | On | On | On | On
Shift Solenoid 2 | Off/On | Eng 2 | Off | Off | Off | On
Current Gear 1 2 3 4 | Gear | Eng 2 | 1 | 1 | 1 | 4
Trans Range or TFP Switch | P/N - Drive 1, 2, 3, 4 - Reverse - Invalid | Eng 2 | Drive 2 | P/N | P/N | Drive 4
TR Switch A/B/C or TFP Switch A/B/C | On/Off | Eng 2 | Off / Off / Off | Off / On / Off | Off / On / Off | Off / On / On
PNP | -R-OD21/ P-N---- | Eng 2 | P-N---- | P-N---- | P-N---- | -R-OD21
IAC Position | Steps | Eng 2 | 164 | Varies | 30 to 80 | 128
Engine Speed | RPM | Eng 2 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
TCC Brake Switch | Released/ Applied | Eng 2 | Released | Released | Released | Released
TCC | Diseng./ Engaged | Eng 2 | Diseng | Diseng | Diseng | Engaged
MPH | MPH/ km/h | Eng 2 | 0 | 0 | 0 | 55
TCC Duty Cycle | % | Eng 2 | 0% | 0% | 0% | 90%
TCC Slip Speed | RPM | Eng 2 | 0 | +15 to +50 | +15 to +50 | +25
TCC | Diseng./ Engaged | Eng 2 | Diseng. | Diseng. | Diseng. | Engaged
Engine Load | % | Eng 2 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%

#### Engine 3 Data Values

For Cold Key On, Cold Idle and Hot Idle: Vehicle in PARK, A/C turned OFF, no power steering load, all ACC.'s OFF, Brake Pedal Released) (For 55 MPH Cruise: Vehicle in Drive 4, A/C turned ON and no power steering load, compare data after driving for approximately 1 mile)
Scan Tool Parameter | Units Displayed | Data List | Cold Key On | Cold Idle | Hot Idle | 55 MPH Cruise
--- | --- | --- | --- | --- | --- | ---
Engine Oil Level | Normal / Low | Eng 3 | Normal | Normal | Normal | Normal
Engine Oil Pres. | Normal / Low | Eng 3 | Low | Normal | Normal | Normal
Brake Boost. Vac. | kPa/V | Eng 3 | 21 kPa / 0.57 V | 85 kPa / 3.96 V to 95 kPa / 4.51 V | 85 kPa / 3.96 V to 95 kPa / 4.51 V | 65 kPa / 2.90 V
MAP (kPa, V) | kPa/V | Eng 3 | 98 kPa 4.67 V | 30 to 50 kPa 1.50 V @ 38 kPa | 30 to 50 kPa 1.50 V @ 38 kPa | 55 kPa 2.35 V
TCC Brake Sw. | Released/ Applied | Eng 3 | Released | Released | Released | Released
PNP | -R-OD21/ P-N---- | Eng 3 | P-N---- | P-N---- | P-N---- | -R-OD21
Trans Range or TFP Switch | P/N - Drive 1, 2, 3, 4 - Reverse - Invalid | ENG 3 | Drive 2 | P/N | P/N | Drive 4
Sel. Lever Sw. or Transmission Range | Park - Reverse - Neutral - Drive 1,2,3,4 - Invalid | Eng 3 | Park | Park | Park | Drive 4
Sel Level Sw A / B / C / P or Trans Range A/B/C/P | Off/On | Eng 3 | Off,On,On,Off | Off,On,On,Off | Off,On,On,Off | On,Off,Off,On
Loop Status | Open/ Closed | Eng 3 | Open | Varies | Closed | Closed
MIL | Off/On | Eng 3 | On | Off | Off | Off
Malfunction Control Circuit | OK/Open/Short/ Over Current | Eng 3 | OK | OK | OK | OK
Ride Control Output Signal | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
PCM Ride Control | Normal/ Firm | Eng 3 | Normal | Normal | Normal | Normal
MPH | MPH/ km/h | Eng 3 | 0 | 0 | 0 | 55
Vehicle Speed Output Signal | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
Engine Speed | RPM | Eng 3 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
MAF | gms/sec | Eng 3 | 0 | 9.8 to 11 | 5.0 to 6.0 | 25.0
Tachometer Output Signal | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
Traction Control Delivered Torque | % | Eng 3 | 0% | 13 to 18% | 5 to 10% | 23%
Delivered Torque Output Signal | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
EVAP Vacuum Sw. | No Flow/ Purging | Eng 3 | No Flow | No Flow | Varies | Varies
EVAP Solenoid | % | Eng 3 | 0% | 0% | Varies | Varies
EVAP Purge Sol. Control Circuit | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
A/C Relay | Off/On | Eng 3 | Off | Off | Off | On
Ignition 1 | V | Eng 3 | 12.0 | 12.5 | 12.5 | 12.5
A/C Relay Control Circuit | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
Cruise Engaged | No/Yes | Eng 3 | No | No | No | Yes
Cruise | Disabled/ Enabled | Eng 3 | Disabled | Disabled | Disabled | Enabled
Cruise Enable Output Signal | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
Shift Solenoid 1 Control Circuit | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
Shift Solenoid 1 | Off/On | Eng 3 | On | On | On | On
Shift Solenoid 2 | Off/On | Eng 3 | Off | Off | Off | On
Shift Solenoid 2 Control Circuit | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
TCC | Diseng./ Engaged | Eng 3 | Diseng. | Diseng. | Diseng. | Engaged
TCC Duty Cycle | % | Eng 3 | 0% | 0% | 0% | 89%
TCC Solenoid Control Circuit | OK/Open/ Short/ Over Current | Eng 3 | OK | OK | OK | OK
Driver 1 Ground | OK/ Over Voltage/ Over Current | Eng 3 | OK | OK | OK | OK
Driver 2 Ground | OK/ Over Voltage/ Over Current | Eng 3 | OK | OK | OK | OK
Ignition 0 | V | Eng 3 | 12.0 | 13.0 to 14.0 | 13.0 to 14.0 | 13.0 to 14.0
Quad Driver 1 | OK/Fault | Eng 3 | Fault | OK | OK | OK
FC Relay 1 | Off/On | Eng 3 | Off | Off | Varies | Varies
FC Relay 2 and 3 | Off/On | Eng 3 | Off | Off | Varies | Varies
Injector PWM Bn 1 | ms | Eng 3 | 0 | 3.75 to 4.50 | 3.20 to 3.75 | 5.3
Injector PWM Bn 2 | ms | Eng 3 | 0 | 3.75 to 4.50 | 3.20 to 3.75 | 5.0
Injector 1 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
Injector 2 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
Injector 3 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
Injector 4 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
Injector 5 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
Injector 6 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
Injector 7 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
Injector 8 Fault | OK/Fault | Eng 3 | OK | OK | OK | OK
VTD Fuel Cont. | No/Yes | Eng 3 | Yes | Yes | Yes | Yes
IPC Fuel Disabled | Inactive/ Active | Eng 3 | Inactive | Inactive | Inactive | Inactive
VTD Password | OK/ Incorrect | Eng 3 | OK | OK | OK | OK
Auto learn timer | Inactive/ Active | Eng 3 | Inactive | Inactive | Inactive | Inactive
VTD Password Learn Mode | Inactive/ Active | Eng 3 | Inactive | Inactive | Inactive | Inactive
Engine Load | % | Eng 3 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
TP Sensor (V,°) | V/° | Eng 3 | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V 9.3°
IAC Position | Steps | Eng 3 | 164 | Varies | 30 to 80 | 128
Desired Idle | RPM | Eng 3 | 920 | 700 to 1200 | 550 to 675 | 720
ECT | °C | Eng 3 | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
IAT | °C/ °F | Eng 3 | Close to Outside Air Temp. | -20°C to 50°C | 0°C to 90°C | Close to Outside Air Temp.
HO2S Bn 1 Sen. 1 | mV | Eng 3 | 36 | Varies | Varies | Varies
HO2S Bn 2 Sen. 1 | mV | Eng 3 | 45 | Varies | Varies | Varies
Engine Run Time | Hr./min. | Eng 3 | 0:00:00 | Varies | Varies | Varies
Odometer | Miles | Eng 3 | Should match IPC | Should match IPC | Should match IPC | Should match IPC

#### Fuel Trim 1 Data Values

For Cold Key On, Cold Idle and Hot Idle: Vehicle in PARK, A/C turned OFF, no power steering load, all ACC.s OFF, Brake Pedal Released. For 55 MPH Cruise: Vehicle in Drive 4, A/C turned ON and no power steering load, compare data after driving for approximately 1 mile.
Scan Tool Parameter | Units Displayed | Data List | Cold Key On | Cold Idle | Hot Idle | 55 MPH Cruise
--- | --- | --- | --- | --- | --- | ---
Engine Speed | RPM | Fuel Trim 1 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
MAF | gms/sec | Fuel Trim 1 | 0 | 9.8 to 11 | 5.0 to 6.0 | 25.0
Air Fuel Ratio | :1 | Fuel Trim 1 | 7.5:1 | 10.0 to 14.9 | 14.5 to 14.9 | 14.7:1
Loop Status | Open/ Closed | Fuel Trim 1 | Open | Varies | Closed | Closed
Engine Run Time | Hr./min. | Fuel Trim 1 | 0:00:00 | Varies | Varies | Varies
ECT | °C | Fuel Trim 1 | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
TP Sensor (V,°) | V/° | Fuel Trim 1 | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V / 9.3°
Power Enrichment | Inactive/ Active | Fuel Trim 1 | Inactive | Inactive | Inactive | Active
Air Fuel Ratio | :1 | Fuel Trim 1 | 7.5:1 | 10.0 to 14.9 | 14.5 to 14.9 | 14.7:1
Engine Load | % | Fuel Trim 1 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
HO2S Bn 1 Sen. 1 | mV | Fuel Trim 1 | 36 | Varies | Varies | Varies
HO2S Bn 2 Sen. 1 | mV | Fuel Trim 1 | 45 | Varies | Varies | Varies
CL Fuel Control Sw. Point O2S | mV | Fuel Trim 1 |  | 0 | Varies |
Ignition 1 | V | Fuel Trim 1 | 12.0 | 12.5 | 12.5 | 12.5
ECT | °C | Fuel Trim 1 | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
HO2S Warm Up Time Bn 1 Sen. 1 | Seconds | Fuel Trim 1 | 0 | 0 to 65 | 0 to 65 | 0 to 65
HO2S Warm Up Time Bn 2 Sen. 1 | Seconds | Fuel Trim 1 | 0 | 0 to 65 | 0 to 65 | 0 to 65
Engine Run Time | Hr./min. | Fuel Trim 1 | 0:00:00 | Varies | Varies | Varies
Loop Status | Open/ Closed | Fuel Trim 1 | Open | Varies | Closed | Closed
MAP | kPa/ V | Fuel Trim 1 | 98 kPa 4.67 V | 30 to 50 kPa 1.50 V @ 38 kPa | 30 to 50 kPa 1.50 V @ 38 kPa | 55 kPa 2.35 V
MPH | MPH/ km/h | Fuel Trim 1 | 0 | 0 | 0 | 55
Engine Speed | RPM | Fuel Trim 1 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
Desired Idle | RPM | Fuel Trim 1 | 920 | 700 to 1200 | 550 to 675 | 720
IAC Position | Steps | Fuel Trim 1 | 164 | Varies | 30 to 80 | 128
TP Sensor (V,°) | V/ ° | Fuel Trim 1 | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V / 9.3 °.
Engine Load | % | Fuel Trim 1 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
Throttle at Idle | No/Yes | Fuel Trim 1 | Yes | Yes | Yes | No
Trans Range | P/N - Drive 1, 2, 3, 4 - Reverse - Invalid | Fuel Trim 1 | P/N | P/N | P/N | Drive 4
PSP Switch | Normal/ Hi Press. | Fuel Trim 1 | Normal | Normal | Normal | Normal
IAT | °C/ °F | Fuel Trim 1 | Close to Outside Air Temp. | -20°C to 50°C | 0°C to 90°C | Close to Outside Air Temp.
Air Fuel Ratio | :1 | Fuel Trim 1 | 7.5:1 | 10.0 to 14.9 | 14.5 to 14.9 | 14.7:1
Injector PWM Bn 1 | ms | Fuel Trim 1 | 0 | 3.75 to 4.50 | 3.00 to 3.75 | 5.3
Injector PWM Bn 2 | ms | Fuel Trim 1 | 0 | 3.75 to 4.50 | 3.00 to 3.75 | 5.0
Shrt Term FT Bn 1 | % Rich/Lean | Fuel Trim 1 | 0% Lean | -2.0 to 2.0 | -3.0 to 3.0 | Varies
Long Term FT Bn 1 | % Rich/Lean | Fuel Trim 1 | 0% Lean | 15 to 25 | 15 to 25 | Varies
Shrt Term FT Bn 2 | % Rich/Lean | Fuel Trim 1 | 0% Lean | -2.0 to 2.0 | -3.0 to 4.0 | Varies
Long Term FT Bn 2 | % Rich/Lean | Fuel Trim 1 | 0% Lean | 15 to 25 | 15 to 25 | Varies
O2S X Counts Bn 1 | Counts | Fuel Trim 1 | 0 | Varies | Varies | Varies
O2S X Counts Bn 2 | Counts | Fuel Trim 1 | 0 | Varies | Varies | Varies
HO2S Bn 1 Sen. 1 | mV | Fuel Trim 1 | 36 | Varies | Varies | Varies
HO2S Bn 2 Sen. 1 | mV | Fuel Trim 1 | 45 | Varies | Varies | Varies
HO2S Bn 1 Sen. 2 | mV | Fuel Trim 1 | 40 | Varies | Varies | Varies
HO2S Bn 1 Sen. 3 | mV | Fuel Trim 1 | 93 | Varies | 600 mV or more | 600 mV or more
O2S X Counts Bn1 | Counts | Fuel Trim 1 | 0 | Varies | Varies | Varies
O2S X Counts Bn 2 | Counts | Fuel Trim 1 | 0 | Varies | Varies | Varies
Rich To Lean Status Bn 1 Sen. 1 | Lean/Rich | Fuel Trim 1 | Lean | Varies | Varies | Varies
HO2S Lean/ Rich Transition Time Bn 1 Sen. 1 | ms | Fuel Trim 1 | Varies | Varies | Varies | Varies
HO2S Rich/ Lean Transition Time Bn 1 Sen. 1 | ms | Fuel Trim 1 | Varies | Varies | Varies | Varies
O2S X Counts Bn 1 | Counts | Fuel Trim 1 | 0 | Varies | Varies | Varies
O2S X Counts Bn 2 | Counts | Fuel Trim 1 | 0 | Varies | Varies | Varies
Rich To Lean Status Bn 2 Sen. 1 | Lean/Rich | Fuel Trim 1 | Lean | Varies | Varies | Varies
HO2S Lean/ Rich Transition Time Bn 2 Sen. 1 | ms | Fuel Trim 1 | Varies | Varies | Varies | Varies
HO2S Rich/ Lean Transition Time Bn 2 Sen. 1 | ms | Fuel Trim 1 | Varies | Varies | Varies | Varies
Rich To Lean Status Bn 1 Sen. 2 | Lean/Rich | Fuel Trim 1 | Lean | Varies | Varies | Lean
HO2S Lean/ Rich Transition Time Bn 1 Sen. 2 | ms | Fuel Trim 1 | Varies | Varies | Varies | Varies
HO2S Rich/ Lean Transition Time Bn 1 Sen. 2 | ms | Fuel Trim 1 | Varies | Varies | Varies | Varies
HO2S Bn 1 Sen. 2 | mV | Fuel Trim 1 | 40 | Varies | Varies | Varies
HO2S Bn 1 Sen. 3 | mV | Fuel Trim 1 | 93 | Varies | 600 mV or more | 600 mV or more
Rich To Lean Status Bn 1 Sen. 3 | Lean/Rich | Fuel Trim 1 | -- | Varies | Varies | --

#### Fuel Trim 2 Data Values

For Cold Key On, Cold Idle and Hot Idle: Vehicle in PARK, A/C turned OFF, no power steering load, all ACC.s OFF, Brake Pedal Released. For 55 MPH Cruise: Vehicle in Drive 4, A/C turned ON and no power steering load, compare data after driving for approximately 1 mile.
Scan Tool Parameter | Units Displayed | Data List | Cold Key On | Cold Idle | Hot Idle | 55 MPH Cruise
--- | --- | --- | --- | --- | --- | ---
Engine Speed | RPM | Fuel Trim 2 | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
MAF | gms/sec | Fuel Trim 2 | 0 | 9.8 to 11.0 | 5.0 to 6.0 | 25.0
ECT | °C | Fuel Trim 2 | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
Loop Status | Open/ Closed | Fuel Trim 2 | Open | Varies | Closed | Closed
Air Fuel Ratio | :1 | Fuel Trim 2 | 7.5:1 | 10.0 to 14.9 | 14.5 to 14.9 | 14.7:1
Calc. TWC Temp | °C/ °F | Fuel Trim 2 | Varies | Varies | Varies | Varies
TP Sensor (V,°) | V/° | Fuel Trim 2 | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V / 9.3°
Engine Load | % | Fuel Trim 2 | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
Trans Range | P/N - Drive 1, 2, 3, 4 - Reverse - Invalid | Fuel Trim 2 | P/N | P/N | P/N | Drive 4
MPH | MPH/ km/h | Fuel Trim 2 | 0 | 0 | 0 | 55
Throttle at Idle | No/Yes | Fuel Trim 2 | Yes | Yes | Yes | No
IAC Position | Steps | Fuel Trim 2 | 164 | Varies | 30 to 80 | 128
Shrt Term FT Bn 1 | % Counts | Fuel Trim 2 | 0% 128 | -2.0 to 2.0 | -3.0 to 3.0 | Varies
Long Term FT Bn 1 | % Counts | Fuel Trim 2 | 0% 128 | 15 to 25 | 15 to 25 | Varies
Shrt Term FT Bn 2 | % Counts | Fuel Trim 2 | 0% 128 | -2.0 to 2.0 | -3.0 to 4.0 | Varies
Long Term FT Bn 2 | % Counts | Fuel Trim 2 | 0% 128 | 15 to 25 | 15 to 25 | Varies
HO2S Bn 1 Sen. 1 | mV | Fuel Trim 2 | 36 | Varies | Varies | Varies
HO2S Bn 2 Sen. 1 | mV | Fuel Trim 2 | 45 | Varies | Varies | Varies
Lean/Rich Switch Bn 1 Sen. 1 | Counts | Fuel Trim 2 | 0 | More than 12 | More than 12 | More than 12
Rich/Lean Switch Bn 1 Sen. 1 | Counts | Fuel Trim 2 | 0 | More than 12 | More than 12 | More than 12
Rich to Lean Status Bn 1 Sen. 1 | Lean/Rich | Fuel Trim 2 | Lean | Varies | Varies | Varies
O2S X Counts Bn 1 | Counts | Fuel Trim 2 | 0 | Varies | Varies | Varies
O2S X Counts Bn 2 | Counts | Fuel Trim 2 | 0 | Varies | Varies | Varies
HO2S Bn 1 Sen. 1 | mV | Fuel Trim 2 | 36 | Varies | Varies | Varies
HO2S Bn 2 Sen. 1 | mV | Fuel Trim 2 | 45 | Varies | Varies | Varies
Lean/Rich Switch Bn 2 Sen. 1 | Counts | Fuel Trim 2 | 0 | More than 12 | More than 12 | More than 12
Rich/Lean Switch Bn 2 Sen. 1 | Counts | Fuel Trim 2 | 0 | More than 12 | More than 12 | More than 12
Rich to Lean Status Bn 2 Sen. 1 | Lean/Rich | Fuel Trim 2 | Lean | Varies | Varies | Varies
O2S X Counts Bn 1 | Counts | Fuel Trim 2 | 0 | Varies | Varies | Varies
O2S X Counts Bn 2 | Counts | Fuel Trim 2 | 0 | Varies | Varies | Varies
HO2S Bn 1 Sen. 2 | mV | Fuel Trim 2 | 40 | Varies | Varies | Varies
HO2S Bn 1 Sen. 3 | mV | Fuel Trim 2 | 93 | Varies | 600 mV or more | 600 mV or more
Lean/Rich Switch Bn 1 Sen. 2 | Counts | Fuel Trim 2 | 0 | More than 12 | More than 12 | More than 12
Rich/Lean Switch Bn 1 Sen. 2 | Counts | Fuel Trim 2 | 0 | More than 12 | More than 12 | More than 12
Rich to Lean Status Bn 1 Sen. 2 | Lean/Rich | Fuel Trim 2 | Lean | Varies | Varies | Varies
HO2S Bn 1 Sen. 2 | mV | Fuel Trim 2 | 40 | Varies | Varies | Varies
HO2S Bn 1 Sen. 3 | mV | Fuel Trim 2 | 93 | Varies | 600 mV or more | 600 mV or more
Rich to Lean Status Bn 1 Sen. 3 | Lean/Rich | Fuel Trim 2 | Lean | Varies | Varies | Varies

#### Misfire Data Values

For Cold Key On, Cold Idle and Hot Idle: Vehicle in PARK, A/C turned OFF, no power steering load, all ACC.'s OFF, Brake Pedal Released. For 55 MPH Cruise: Vehicle in Drive 4, A/C turned ON and no power steering load, compare data after driving for approximately 1 mile.
Scan Tool Parameter | Units Displayed | Data List | Cold Key On | Cold Idle | Hot Idle | 55 MPH Cruise
--- | --- | --- | --- | --- | --- | ---
Misfire Hist. # 1 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Hist. # 2 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Hist. # 3 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Hist. # 4 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Hist. # 5 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Hist. # 6 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Hist. # 7 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Hist. # 8 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Passes | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Failures | Counts | MisFire | 0 | 0 | 0 | 0
Cycles of Misfire Data | Counts | MisFire | 0 | Varies | Varies | Varies
Misfire Cycle Delay Counter | Counts | MisFire | 50 | 0 | 0 | Varies
Msf. Rev. Status | Accepted/Rejected | MisFire | Accepted | Varies | Varies | Varies
Revs. w/Misfire | Counts | MisFire | 0 | 0 | 0 | 0
Misfiring Cyl. Prm. Cyl. # / Sec. Cyl. # | 0-8 | Misfire | 0 | 0 | 0 | 0
Misfire Status | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 1 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 2 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 3 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 4 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 5 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 6 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 7 | Counts | MisFire | 0 | 0 | 0 | 0
Misfire Cur. # 8 | Counts | MisFire | 0 | 0 | 0 | 0
Engine Speed | RPM | MisFire | 0 | Within 80 RPM of Desired Idle | Within 80 RPM of Desired Idle | 1820
RPM at Misfire | RPM | MisFire | 0 | Varies | Varies | Varies
Engine Load | % | MisFire | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
Load at Misfire | % | MisFire | 0 | Varies | Varies | Varies
MAF | gms/sec | MisFire | 0 | 9.8 to 11.0 | 5.0 to 6.0 | 25.0
TP Sensor (V,°) | V/° | MisFire | 0.63 V / 1.7° | 0.60 V / 0.8° | 0.60 V / 0.8° | 0.96 V / 9.3°
ECT | °C | MisFire | -20°C to 50°C | -20°C to 50°C | 90°C to 110°C | 90°C to 110°C
ECT at Misfire | °C | MisFire | -40°C | -40°C | -40°C | -40°C
MAP (kPa, V) | kPa/V | MisFire | 98 kPa 4.67 V | 30 to 50 kPa 1.50 V @ 38 kPa | 30 to 50 kPa 1.50 V @ 38 kPa | 55 kPa 2.35 V
Spark | ° | MisFire | -15°. | Varies | Varies | Varies
Engine Load | % | MisFire | 0% | 1 to 5% | 1 to 5% 8% @ 2500 RPM | 11%
Knock Retard | ° | MisFire | 0 | 0 | 0 | 0
HO2S Bn 1 Sen. 1 | mV | MisFire | 36 | Varies | Varies | Varies
HO2S Bn 2 Sen. 1 | mV | MisFire | 45 | Varies | Varies | Varies