2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1851
temperature.
* The Long Term FT parameter should be between +10 % and -10 %, with near 0 % the optimum, with the engine running at operating
temperature.
* Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
P0171 or P0174
Allow the engine to reach operating temperature. With the engine running, observe the affected Long Term FT parameter with a scan tool. The
reading should be between 0-19 %.
If not within the specified range, inspect for the following:
* With the ignition ON and the engine OFF, observe the manifold absolute pressure (MAP) sensor parameter. The MAP sensor pressure should
be within the range specified for your altitude. Refer to Altitude Versus Barometric Pressure (See: Powertrain Management/Computers and
Control Systems/Specifications/Altitude Versus Barometric Pressure).
瀚慠efer to DTC P0106 (See: P Code Charts/P0106) if the MAP sensor does not indicate the correct barometric pressure.
* With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.
瀚慠efer to DTC P0101 or P1101 (See: P Code Charts/P0101) or DTC P0102 or P0103 (See: P Code Charts/P0102) if the MAF sensor
parameter is not within 2-6 g/s at idle.
* Vacuum hoses for splits, kinks, and improper connections
* Insufficient fuel in the tank
* Low fuel pressure-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Component Tests and General Diagnostics).
* Fuel contamination-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool) (See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without
Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (See: Powertrain Management/Fuel Delivery and Air
Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool)) for Gasoline or Fuel Composition Diagnosis
(See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics) for E85.
* Malfunctioning fuel injectors-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and Exhaust/Exhaust System/Testing and
Inspection/Symptoms - Engine Exhaust).
* Missing, loose, or leaking exhaust components from the HO2S forward-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and
Exhaust/Exhaust System/Testing and Inspection/Symptoms - Engine Exhaust).
* Vacuum leaks at the intake manifold, the throttle body, and the injector O-rings
* The air induction system and the air intake ducts for leaks or for a missing air filter element
* A cracked EVAP canister
* Evaporative pipes obstructed or leaking
* The crankcase ventilation system for leaks
* The HO2S for improper installation and for electrical wires or connectors that may have contacted the exhaust system
* The HO2S signal circuit open, shorted to ground, or shorted to the low reference circuit
* Malfunctioning engine components-Refer to Symptoms - Engine Mechanical (See: Engine, Cooling and Exhaust/Engine/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Mechanical).
P0172 or P0175
Allow the engine to reach operating temperature. With the engine running, observe the affected Long Term FT parameter with a scan tool. The
reading should be between -19 and 0 %.
If not within the specified range, inspect for the following:
* With the engine idling and the transmission in the Park or Neutral position, observe the manifold absolute pressure (MAP) sensor parameter.
The MAP sensor parameter should be between 19-42 kPa.
瀚慠efer to DTC P0106 (See: P Code Charts/P0106) if the MAP sensor parameter is not between 19-42 kPa.
* With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.
瀚慠efer to DTC P0101 or P1101 (See: P Code Charts/P0101) or DTC P0102 or P0103 (See: P Code Charts/P0102) if the MAF sensor
parameter is not within 2-6 g/s at idle.
* Vacuum hoses for splits, kinks, and improper connections
* The air intake duct for being collapsed or restricted
* The air filter for being dirty or restricted
Showing posts with label temperature.. Show all posts
Showing posts with label temperature.. Show all posts
Wednesday, November 4, 2020
Monday, March 2, 2020
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1236
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1236
temperature, boost pressure, sensor. Verify the scan tool Boost Pressure Sensor parameter responds to the applied pressure.
瀚慖f the scan tool Boost Pressure Sensor parameter does not increase with the applied pressure, replace the B65 intake air pressure and
temperature sensor.
4. Inspect the turbocharger oil supply lines for a restriction.
瀚慖f restricted, repair or replace as necessary.
5. If all other components test normal, test or replace the turbocharger.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Turbocharger Pressure Sensor Replacement (See: Powertrain Management/Fuel Delivery and Air Induction/Turbocharger/Service and
Repair/Turbocharger Pressure Sensor Replacement) for intake air pressure and temperature sensor replacement.
* Turbocharger Removal (See: Engine, Cooling and Exhaust/Engine/Service and Repair/Overhaul/20. Turbocharger Removal)
* Turbocharger Disassemble (See: Engine, Cooling and Exhaust/Engine/Service and Repair/Overhaul/101. Turbocharger Disassemble)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for engine control module replacement, setup, and
programming
P0300
DTC P0300-P0306 (LAU)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0300
- Engine Misfire Detected
DTC P0301
- Cylinder 1 Misfire Detected
DTC P0302
- Cylinder 2 Misfire Detected
DTC P0303
- Cylinder 3 Misfire Detected
DTC P0304
- Cylinder 4 Misfire Detected
DTC P0305
- Cylinder 5 Misfire Detected
DTC P0306
- Cylinder 6 Misfire Detected
Circuit/System Description
The engine control module (ECM) uses information from the crankshaft position sensor and the camshaft position sensors in order to determine
when an engine misfire is occurring. By monitoring variations in the crankshaft rotation speed for each cylinder, the ECM is able to detect
individual misfire events. A misfire rate that is high enough can cause 3-way catalytic converter damage. The malfunction indicator lamp (MIL)
will flash ON and OFF when the conditions for catalytic converter damage are present. DTCs P0301 through P0306 correspond to cylinders 1
through 6. If the ECM is able to determine that a specific cylinder is misfiring, the DTC for that cylinder will set.
Conditions for Running the DTC
* DTC P0121, P0122, P0123, P0221, P0222, P0223, P0335, P0336, or P0338 is not set.
* The engine speed is between 450-6,500 RPM.
Saturday, November 2, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1952
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1952
temperature.
* The Long Term FT parameter should be between +10 % and -10 %, with near 0 % the optimum, with the engine running at operating
temperature.
* Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
P0171 or P0174
Allow the engine to reach operating temperature. With the engine running, observe the affected Long Term FT parameter with a scan tool. The
reading should be between 0-19 %.
If not within the specified range, inspect for the following:
* With the ignition ON and the engine OFF, observe the manifold absolute pressure (MAP) sensor parameter. The MAP sensor pressure should
be within the range specified for your altitude. Refer to Altitude Versus Barometric Pressure (See: Powertrain Management/Computers and
Control Systems/Specifications/Altitude Versus Barometric Pressure).
锟斤拷Refer to DTC P0106 (See: P Code Charts/P0106) if the MAP sensor does not indicate the correct barometric pressure.
* With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.
锟斤拷Refer to DTC P0101 or P1101 (See: P Code Charts/P0101) or DTC P0102 or P0103 (See: P Code Charts/P0102) if the MAF sensor
parameter is not within 2-6 g/s at idle.
* Vacuum hoses for splits, kinks, and improper connections
* Insufficient fuel in the tank
* Low fuel pressure-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Component Tests and General Diagnostics).
* Fuel contamination-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool) (See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without
Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (See: Powertrain Management/Fuel Delivery and Air
Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool)) for Gasoline or Fuel Composition Diagnosis
(See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics) for E85.
* Malfunctioning fuel injectors-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and Exhaust/Exhaust System/Testing and
Inspection/Symptoms - Engine Exhaust).
* Missing, loose, or leaking exhaust components from the HO2S forward-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and
Exhaust/Exhaust System/Testing and Inspection/Symptoms - Engine Exhaust).
* Vacuum leaks at the intake manifold, the throttle body, and the injector O-rings
* The air induction system and the air intake ducts for leaks or for a missing air filter element
* A cracked EVAP canister
* Evaporative pipes obstructed or leaking
* The crankcase ventilation system for leaks
* The HO2S for improper installation and for electrical wires or connectors that may have contacted the exhaust system
* The HO2S signal circuit open, shorted to ground, or shorted to the low reference circuit
* Malfunctioning engine components-Refer to Symptoms - Engine Mechanical (See: Engine, Cooling and Exhaust/Engine/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Mechanical).
P0172 or P0175
Allow the engine to reach operating temperature. With the engine running, observe the affected Long Term FT parameter with a scan tool. The
reading should be between -19 and 0 %.
If not within the specified range, inspect for the following:
* With the engine idling and the transmission in the Park or Neutral position, observe the manifold absolute pressure (MAP) sensor parameter.
The MAP sensor parameter should be between 19-42 kPa.
锟斤拷Refer to DTC P0106 (See: P Code Charts/P0106) if the MAP sensor parameter is not between 19-42 kPa.
* With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.
锟斤拷Refer to DTC P0101 or P1101 (See: P Code Charts/P0101) or DTC P0102 or P0103 (See: P Code Charts/P0102) if the MAF sensor
parameter is not within 2-6 g/s at idle.
* Vacuum hoses for splits, kinks, and improper connections
* The air intake duct for being collapsed or restricted
* The air filter for being dirty or restricted
temperature.
* The Long Term FT parameter should be between +10 % and -10 %, with near 0 % the optimum, with the engine running at operating
temperature.
* Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
P0171 or P0174
Allow the engine to reach operating temperature. With the engine running, observe the affected Long Term FT parameter with a scan tool. The
reading should be between 0-19 %.
If not within the specified range, inspect for the following:
* With the ignition ON and the engine OFF, observe the manifold absolute pressure (MAP) sensor parameter. The MAP sensor pressure should
be within the range specified for your altitude. Refer to Altitude Versus Barometric Pressure (See: Powertrain Management/Computers and
Control Systems/Specifications/Altitude Versus Barometric Pressure).
锟斤拷Refer to DTC P0106 (See: P Code Charts/P0106) if the MAP sensor does not indicate the correct barometric pressure.
* With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.
锟斤拷Refer to DTC P0101 or P1101 (See: P Code Charts/P0101) or DTC P0102 or P0103 (See: P Code Charts/P0102) if the MAF sensor
parameter is not within 2-6 g/s at idle.
* Vacuum hoses for splits, kinks, and improper connections
* Insufficient fuel in the tank
* Low fuel pressure-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Component Tests and General Diagnostics).
* Fuel contamination-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool) (See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without
Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (See: Powertrain Management/Fuel Delivery and Air
Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool)) for Gasoline or Fuel Composition Diagnosis
(See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics) for E85.
* Malfunctioning fuel injectors-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and Exhaust/Exhaust System/Testing and
Inspection/Symptoms - Engine Exhaust).
* Missing, loose, or leaking exhaust components from the HO2S forward-Refer to Symptoms - Engine Exhaust (See: Engine, Cooling and
Exhaust/Exhaust System/Testing and Inspection/Symptoms - Engine Exhaust).
* Vacuum leaks at the intake manifold, the throttle body, and the injector O-rings
* The air induction system and the air intake ducts for leaks or for a missing air filter element
* A cracked EVAP canister
* Evaporative pipes obstructed or leaking
* The crankcase ventilation system for leaks
* The HO2S for improper installation and for electrical wires or connectors that may have contacted the exhaust system
* The HO2S signal circuit open, shorted to ground, or shorted to the low reference circuit
* Malfunctioning engine components-Refer to Symptoms - Engine Mechanical (See: Engine, Cooling and Exhaust/Engine/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Mechanical).
P0172 or P0175
Allow the engine to reach operating temperature. With the engine running, observe the affected Long Term FT parameter with a scan tool. The
reading should be between -19 and 0 %.
If not within the specified range, inspect for the following:
* With the engine idling and the transmission in the Park or Neutral position, observe the manifold absolute pressure (MAP) sensor parameter.
The MAP sensor parameter should be between 19-42 kPa.
锟斤拷Refer to DTC P0106 (See: P Code Charts/P0106) if the MAP sensor parameter is not between 19-42 kPa.
* With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.
锟斤拷Refer to DTC P0101 or P1101 (See: P Code Charts/P0101) or DTC P0102 or P0103 (See: P Code Charts/P0102) if the MAF sensor
parameter is not within 2-6 g/s at idle.
* Vacuum hoses for splits, kinks, and improper connections
* The air intake duct for being collapsed or restricted
* The air filter for being dirty or restricted
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