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.
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 |
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% |
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 |
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 | -- |
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 |
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 |
