P0171 · نشرات الشركة المصنعة

JEEP · 2021-06-19

Customer?s complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above codes, check for the condition listed above.

JEEP · 2021-06-19

Customer?s complaint may include a MIL-on with one or more of the following DTCs Active, Pending, or Stored in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 Bank 1 downstream O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above codes, check for the condition listed above.

RAM · 2021-05-22

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0133 - O2 Sensor 1/1 Slow Response. P0153 - O2 Sensor 2/1 Slow Response. P0171 - Fuel System 1/1 Lean. P0174 - Fuel System 2/1 Lean. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. P0307 - Cylinder 7 Misfire. P0308 - Cylinder 8 Misfire. B2286 - Calibration Not Learned / Lost Calibration. The customer may…

RAM · 2021-05-22

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0133 - O2 Sensor 1/1 Slow Response. P0153 - O2 Sensor 2/1 Slow Response. P0171 - Fuel System 1/1 Lean. P0174 - Fuel System 2/1 Lean. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. P0307 - Cylinder 7 Misfire. P0308 - Cylinder 8 Misfire. B2286 - Calibration Not Learned / Lost Calibration. The customer may…

FORD · 2021-05-18

Some 2021 F-150 vehicles equipped with a 5.0L engine and built on or before 04-Mar-2021 may experience an illuminated malfunction indicator lamp (MIL) and diagnostic trouble codes (DTC) P0364, P060B, P062B, P164C, P2601, P0171, P0172, P0174, P0175 and/or P1104 stored in the powertrain control module (PCM). This may be due to various software parameters within the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM and reset the keep alive memory (KAM).

CHEVROLET, GMC · 2021-04-29

This technical bulletin provides repair information to correct a customer concern of Engine Control Module Calibration for DTC P0171 and P0174 Set.

JEEP · 2021-04-15

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P02EE - Cylinder 1 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02EF - Cylinder 2 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F0 - Cylinder 3 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F1 - Cylinder 4 Injector Circuit Performance(APAC, EMEA and LATAM Only). P2C90 - Crankcase Ventilation System - Hose "A" Disconnected(APAC, EMEA and LATAM Only). P04FC - Crankcase Ventilation System Performance(APAC, EMEA and LATAM Only). P2453 - Particulate…

FORD · 2021-04-08

Some 2017-2021 Transit vehicles built on or before 30-Nov-2020 may experience a slow fill condition and/or illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0171, P0174, P0451, P0455, P0456, P0496 and/or P1450. This may be due to a kinked evaporator emissions fresh air vent line. To correct this condition, follow the Service Procedure to attach a zip tie to the fresh air vent line.

FORD · 2021-03-22

Some 2021 F-150 vehicles equipped with a 5.0L engine and built on or before 08-Mar-2021 may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0364, P060B, P062B, P164C, P2601, P0171, P0172, P0174, P0175, P3450 and/or P1104 stored in the powertrain control module (PCM). This may be due to various software parameters within the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM and reset the keep alive memory (KAM).

JEEP · 2021-01-16

Customer?s complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above codes, check for the condition listed above.

JEEP · 2021-01-16

Customer's complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above codes, check for the condition listed above.

FORD · 2020-09-18

Some 2018 F-150 vehicles equipped with a 2.7L EcoBoost engine may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2196, P2198, P2BF0, P2BF2, P2BF1, P2BF3, P2BEC, P2BED, P2BEE, P2BEF, P130D, P0300, P0316, P0301-P0306, P0171, P0174, P219A, P219B, P0172 and/or P0175 stored in the powertrain control module (PCM). This may be due to software in the powertrain control module (PCM) or direct injection fuel injectors leaking down. To correct the condition, follow the Service Procedure to reprogram the PCM and/or replace the direct injection fuel injectors.

BUICK · 2020-09-09

Special Coverage Adjustment - certain vehicles, equipped with a 1.6L engine, may have a condition where cracks can develop in the diaphragm of the Positive Crankcase Ventilation (PCV) pressure regulator valve. This valve is a part of the engine camshaft cover. If this were to occur, excess air could be drawn into the engine intake. As a result, the engine may run rough, especially during idle, the Malfunction Indicator Light (Check Engine Light) would illuminate and a diagnostic trouble code for Fuel Trim Lean (P0171) or other airflow related DTC would set. Dealers are to replace the engine camshaft cover as necessary. The repairs will be made at no charge to the customer.

FORD · 2020-08-06

Some 2018-2020 F-150 vehicles equipped with a 5.0L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0171, P0172, P0174 and/or P0175. This may be due to incorrect flex fuel learning, which is often caused by customer refueling habits when adding only small amounts of fuel, the vehicle mislearning of inferred ethanol fuel mixture (FF_INF value) or a component concern. Refer to pinpoint test H in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual for diagnostics and Flex Fuel GSB for additional flex fuel system information and diagnostic tips.

BUICK, CHEVROLET · 2020-07-28

Special Coverage - Certain 2014 model year Buick Encore, 2011 - 2014 model year Chevrolet Cruze, 2012 - 2014 model year Chevrolet Sonic, and 2014 model year Chevrolet TRAX vehicles, equipped with a 1.4L Engine (RPO LUJ or LUV), may have a condition where cracks can develop in the diaphragm of the Positive Crankcase Ventilation (PCV) pressure regulator valve. This valve is a part of the engine camshaft cover. If this were to occur, excess air could be drawn into the engine intake. As a result, the engine may run rough, especially during idle, the Malfunction Indicator Light (Check Engine Light) would illuminate and a diagnostic trouble code for Fuel Trim Lean (P0171) or other airflow related DTC would set. Dealers are to replace the engine camshaft cover as necessary. The repairs will be…

JEEP · 2020-06-19

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P2C90 - Crankcase Ventilation System - Hose "A" Disconnected(APAC, EMEA and LATAM Only). P04FC - Crankcase Ventilation System Performance(APAC, EMEA and LATAM Only). P2453 - Particulate Filter Pressure Sensor "A" Circuit Range/Performance(APAC and EMEA only equipped with Gas Particulate Filter (GPF). P245F - Particulate Filter Pressure Sensor "B" Circuit Range/Performance(APAC and EMEA only equipped with Gas Particulate Filter (GPF). P0456 - EVAP System Small Leak. If DTC P0456 is present…

JEEP · 2020-06-19

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P2C90 - Crankcase Ventilation System - Hose "A" Disconnected(APAC, EMEA and LATAM Only). P04FC - Crankcase Ventilation System Performance(APAC, EMEA and LATAM Only). P2453 - Particulate Filter Pressure Sensor "A" Circuit Range/Performance(APAC and EMEA only equipped with Gas Particulate Filter (GPF). P245F - Particulate Filter Pressure Sensor "B" Circuit Range/Performance(APAC and EMEA only equipped with Gas Particulate Filter (GPF). P0456 - EVAP System Small Leak. If DTC P0456 is present…

JEEP · 2020-03-18

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P0456 - EVAP System Small Leak.If DTC P0456 is present use wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system. P0171 - Fuel System 1/1 Lean(LATAM Only). P0172 - Fuel System 1/1 Rich(LATAM Only). P0128 - Thermostat Rationality(APAC&EMEA with Sales Codes NA1 with NBQ or NB6 Only). P050B - Cold Start Ignition Timing Performance(APAC&EMEA with Sales Codes NA1 with NBQ or NB6 Only). Customers may experience:Excessive fan noise when the A/C is on MAX…

TOYOTA · 2020-01-23

TSB: REVISION NOTICE January 23, 2020 Rev1: G1439 The Parts Information, Calibration Information, and Repair Procedure sections have been updated. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13.Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ? 2018 model year Sequoia and 2009 ? 2019 model year Tundra vehicles equipped with a 3UR-FBE engine may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ? DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2) ? DTC P0172 and/or P0175 (System Too Rich Bank 1/Bank 2) ? DTC P1604 (Startability Malfunction) Techstream data list analysis may reveal negative fuel trims and an…

TOYOTA · 2019-12-06

TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13. Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ? 2018 model year Sequoia and 2009 ? 2019 model year Tundra vehicles equipped with a 3UR-FBE engine may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs). ? DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2) ? DTC P0172 and/or P0175 (System Too Rich Bank 1/Bank 2) ? DTC P1604 (Startability Malfunction) Techstream Data List analysis may reveal negative fuel trims and an elevated alcohol density estimate relative to the vehicle?s actual fuel alcohol content. Follow the Repair Procedure in this bulletin to address…

CHEVROLET, GMC · 2019-11-04

This Preliminary information communicates A vehicle may come into the dealer with a rough idle, lean running concern and/or air leak noise from the PCV system. Upon inspection the technician may find the SES lamp is illuminated and/or DTC?s P0171 and/or P0174 may be in active or stored history. This condition may be caused by an incorrectly installed foul air PCV tube or tube may be damaged

CHEVROLET, GMC · 2019-11-01

N192273400 - Service Update. Certain LD vehicles may have a condition in which the right-hand side, positive crankcase ventilation (PCV) tube may not be fully seated (loose), allowing unrestricted blow-by gases to release to the atmosphere. Customers may experience a whistling sound, or there may be an audible air leak. Disconnection of this line is monitored through the fuel trim diagnostics, and in a worst-case scenario, the customer may experience a check engine light with DTC codes P0171 and/or P0174. Dealers are to inspect and ensure the PCV tube to the right-hand rocker is fully seated and secure.

CHEVROLET, GMC · 2019-10-28

This Preliminary information communicates A vehicle may come into the dealer with a rough idle, lean running concern and/or air leak noise from the PCV system. Upon inspection the technician may find the SES lamp is illuminated and/or DTC?s P0171 and/or P0174 may be in active or stored history. This condition may be caused by an incorrectly installed foul air PCV tube or tube may be damaged

BUICK, CADILLAC, CHEVROLET, GMC · 2019-09-06

This Preliminary information communicates additional diagnostics and repair to assist in resolving a malfunction indicator lamp illumination due to any combination of diagnostic trouble codes P0068 P0101 P0106 P0171 P0131 P0137 P0324 P0326 P0331 P0506.

BUICK, CHEVROLET · 2019-07-25

This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0171 and or P1101 set. Technician will need to inspect the Air Cleaner Housing. If the air cleaner housing does not have the correct content for the engine application as shown, dealer is instructed to replace the Air Cleaner Housing with the latest part listed in the Electronic Parts Catalog.

CHEVROLET · 2019-07-09

N192210230 - Special Coverage - Some 2015-2016 Chevrolet Cruze and 2015 Chevrolet Sonic vehicles equipped with a 1.4L engine may have a condition where cracks can develop in the diaphragm of the Positive Crankcase Ventilation (PCV) pressure regulator valve. This valve is a part of the engine camshaft cover. If this were to occur, excess air could be drawn into the engine intake. As a result, the engine may run rough, especially during idle, the Malfunction Indicator Light (Check Engine Light) would illuminate and a diagnostic trouble code for Fuel Trim Lean (P0171) or other airflow related DTC would set. Dealers are to replace the engine camshaft cover as necessary. The repairs will be made at no charge to the customer.

TOYOTA · 2019-06-24

TSB: Some 2014 ? 2018 model year Highlander and Highlander Hybrid vehicles may exhibit one or more of the following conditions. ? Various drivability concerns ? Low or no fuel pressure ? Diagnostic Trouble Codes (DTCs) (Including but not limited to P1603, P1604, P1605, P0171, P0300, P0302, P0304, U0100) ? Some 2014 ? 2018 model year Highlander Hybrid vehicles may exhibit DTC P134A. These conditions may be caused by corrosion/water in the A43 ECM connector (Highlander) or the A9 inverter water pump connector (Highlander HV). The corrosion in the A43 and A9 connectors is due to poorly sealed or damaged aftermarket windshield deicer harnesses. Follow the Repair Procedure in this bulletin to address these conditions.

BUICK, CADILLAC, CHEVROLET · 2019-05-15

This informational bulletin provides information to the tech to test the PCV for proper performance before replacing the camshaft cover to correct a MIL On w/DTC P0171.

CHEVROLET, GMC, OLDSMOBILE · 2019-05-09

This Preliminary Information Document advises the dealer that there is a software update available for the Powertrain Control Module to address diagnostic trouble code P0171. If the software update does not correct the condition, the dociment directs the dealer to related technical servce bulletins that cover cleaning fuel injectors and addressing fuel quality.

CHRYSLER · 2019-05-04

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. A customer or technicians may be unable to read data information from the OBDII connector when using a generic scan tool (APAC).Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following DTCs have been set (NAFTA):U0418 - Implausible Data Received From Brake System Control Module 1. U0432 - Invalid Data Received From Multi-Axis Acceleration Sensor Module. P06EF - Engine Restart Performance. P06E9 - Engine Starter Performance. P00FD - Battery -B- State Of Charge Performance. C2222-68 - Improper Powerdown - Event Information. P0607-00 - ECU Internal Performance - ESM. U0402-00 -…