P0172 · निर्माता की तकनीकी जानकारी

MAZDA · 2018-05-08

If a vehicle is driven on extremely short trips most of the time (where the engine never reaches normal operating temperature), the engine oil may become diluted with fuel and the engine oil level will increase. Engine oil dilution with fuel occurring under this specific driving condition is normal with direct injection engines. If the vehicle is driven on a longer trip after a lot of short trips (where the engine reaches normal operating temperature), the Check Engine Light may turn ON with DTC P0172:00 (Fuel system too rich).

CHEVROLET · 2018-01-23

18009 - Service Update. The bootloader version for the engine control module (ECM) was incorrectly released, and may result in a no-start or stall, and P062B, P0171/P0172, P1133/P2195/P2196 or P300 diagnostic trouble codes to set. Dealers are to inspect for part number and replace the ECM as needed.

CADILLAC, CHEVROLET, GMC · 2018-01-18

This Preliminary Information communication provides information to the technician about vehicles that have a Harsh Shift 1/2 and 2/3 and Sputter Applying Throttle Between 0 and 30%, Rough idle. Technician may find Diagnostic Trouble Codes P0101, P0171, P0172, P0174, and or P0175. Technician should inspect for cast flashing near the Mass Air Flow sensor as seen below.

FORD · 2017-02-15

SOME 2015 TRANSIT VEHICLES BUILT ON OR BEFORE 30-MAR-2015 MAY EXHIBIT VARIOUS DRIVABILITY CONCERNS INCLUDING DIFFICULTY STARTING, MISFIRES AND/OR AN ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P00BD, P1247, P1548, P061B, P2195, P2198, P2196, P2197, P0171, P0172, P0174, P0175, P0131 AND/OR P162F STORED IN THE POWERTRAIN CONTROL MODULE (PCM) MEMORY. THIS MAY BE DUE TO UNDESIRED WATER ENTRY INTO THE ENGINE COMPARTMENT DIRECTLY OVER POWERTRAIN COMPONENTS. FOLLOW THE SERVICE PROCEDURE STEPS TO CORRECT THE CONDITION.

BUICK, CADILLAC, CHEVROLET, GMC · 2016-11-30

This Preliminary Information communication provides information to the technician about vehicles that have a Harsh Shift 1/2 and 2/3 and Sputter Applying Throttle Between 0 and 30%, Rough idle. Technician may find Diagnostic Trouble Codes P0101, P0171, P0172, P0174, and or P0175. Technician should inspect for cast flashing near the Mass Air Flow sensor as seen below.

NISSAN · 2015-12-17

IF YOU CONFIRM: There are no drivability issues. and The MIL is ON with one or more of the following Air Fuel (A/F) Sensor DTCs stored: - P0171 - FUEL SYS-LEAN-B1 (System too lean bank 1) - P0172 - FUEL SYS-RICH-B1 (System too rich bank 1) - P2096, P2097 - POST CAT FUEL TRIM SYS B1 - P015A - Air fuel ratio (A/F) sensor 1 (bank 1) ACTION: 1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM and replace the A/F sensor. CAUTION: The ECM must be reprogrammed (if it applies) before the A/F sensor is replaced.

LEXUS · 2015-12-17

TT: TMS has discovered the current engine active test ?Control the Injection Mode? is not operating as desired when controlling the direct injectors manually on 2GR-FKS or 8AR-FTS engines. When direct injection is started and then stopped using the active test, current ECU logic does not turn off the direct injectors and can cause DTCs P017200, P017500 and P0160300. In order to avoid this condition, technicians should raise engine RPM when changing from Direct Injection active test to Port Injection active test. Use the recommended procedure below to avoid this concern while testing injection mode of 2GR-FKS or 8AR-FTS equipped vehicles. NOTE: If the active test is used multiple times without using this procedure to raise engine RPM, it may be necessary to reset learning values for fuel…

LEXUS · 2015-12-17

"TT: TMS HAS DISCOVERED THE CURRENT ENGINE ACTIVE TEST “CONTROL THE INJECTION MODE” IS NOT OPERATING AS DESIRED WHEN CONTROLLING THE DIRECT INJECTORS MANUALLY ON 2GR-FKS OR 8AR-FTS ENGINES. WHEN DIRECT INJECTION IS STARTED AND THEN STOPPED USING THE ACTIVE TEST, CURRENT ECU LOGIC DOES NOT TURN OFF THE DIRECT INJECTORS AND CAN CAUSE DTCS P017200, P017500 AND P0160300. IN ORDER TO AVOID THIS CONDITION, TECHNICIANS SHOULD RAISE ENGINE RPM WHEN CHANGING FROM DIRECT INJECTION ACTIVE TEST TO PORT INJECTION ACTIVE TEST. USE THE RECOMMENDED PROCEDURE BELOW TO AVOID THIS CONCERN WHILE TESTING INJECTION MODE OF 2GR-FKS OR 8AR-FTS EQUIPPED VEHICLES. NOTE: IF THE ACTIVE TEST IS USED MULTIPLE TIMES WITHOUT USING THIS PROCEDURE TO RAISE ENGINE RPM, IT MAY BE NECESSARY TO RESET LEARNING VALUES FOR FUEL…

TOYOTA · 2015-12-07

TT: TMS has discovered the current engine active test ?Control the Injection Mode? is not operating as desired when controlling the direct injectors manually on 2GR-FKS engines. When direct injection is started and then stopped using the active test, current ECU logic does not turn off the direct injectors and can cause DTCs P017200, P017500 and P0160300. In order to avoid this condition, technicians should raise engine RPM when changing from Direct Injection active test to Port Injection active test. Use the recommended procedure below to avoid this concern while testing injection mode of 2GR-FKS equipped vehicles. NOTE: If the active test is used multiple times without using this procedure to raise engine RPM, it may be necessary to reset learning values for fuel trim and Air to Fuel…

TOYOTA · 2015-12-07

"TT: TMS HAS DISCOVERED THE CURRENT ENGINE ACTIVE TEST “CONTROL THE INJECTION MODE” IS NOT OPERATING AS DESIRED WHEN CONTROLLING THE DIRECT INJECTORS MANUALLY ON 2GR-FKS ENGINES. WHEN DIRECT INJECTION IS STARTED AND THEN STOPPED USING THE ACTIVE TEST, CURRENT ECU LOGIC DOES NOT TURN OFF THE DIRECT INJECTORS AND CAN CAUSE DTCS P017200, P017500 AND P0160300. IN ORDER TO AVOID THIS CONDITION, TECHNICIANS SHOULD RAISE ENGINE RPM WHEN CHANGING FROM DIRECT INJECTION ACTIVE TEST TO PORT INJECTION ACTIVE TEST. USE THE RECOMMENDED PROCEDURE BELOW TO AVOID THIS CONCERN WHILE TESTING INJECTION MODE OF 2GR-FKS EQUIPPED VEHICLES. NOTE: IF THE ACTIVE TEST IS USED MULTIPLE TIMES WITHOUT USING THIS PROCEDURE TO RAISE ENGINE RPM, IT MAY BE NECESSARY TO RESET LEARNING VALUES FOR FUEL TRIM AND AIR TO FUEL…

JEEP · 2015-11-25

Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming Powertrain Control Module (PCM) with latest available software. It also involves cleaning or replacement of Exhaust Gas Temperature (EGT) Sensor 1/2 and/or Catalyst Temperature Sensor if necessary depending on Diagnostic Trouble Codes (DTCs) that may have set. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in PCM memory: ? P1296-00 - EGR Slow Response - Increasing Flow. ? P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Timing Control. ? P20C2-00 - Reductant Heater 3 Control Circuit Performance. ? P1297-00 - EGR Slow…

JEEP · 2015-03-14

Flash: 3.0 L MIL Illumination Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Code(s) may have been set: ? P20C2 - Reductant Heater 3 Control Circuit Performance. ? P204F - Reductant System Performance. ? P20E9 - Reductant Pressure Too High. ? P0087-00 - Fuel Rail Pressure Too Low. ? P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. ? P0171-00 - System Too Lean (Bank 1). ? P0172-00 - System Too Rich (Bank 1). ? P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. ? P225D-00 -…

JEEP · 2014-12-19

Flash: 3.0 L MIL Illumination Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic P0087-00 - Fuel Rail Pressure Too Low. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P0171-00 - System Too Lean (Bank 1). P0172-00 - System Too Rich (Bank 1). P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. P225D-00 - NOX Sensor 1/1 Performance - Signal Stuck Low. P1288-00 - NOX Sensor 1/2 Zero Offset Too High. P1289-00 - NOX Sensor 1/2 Zero Offset Too Low. P1296-00 - EGR Slow Response - Increasing…

JEEP · 2014-12-19

Flash: 3.0 L MIL Illumination Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Code(s) may have been set: P0087-00 - Fuel Rail Pressure Too Low. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P0171-00 - System Too Lean (Bank 1). P0172-00 - System Too Rich (Bank 1). P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. P225D-00 - NOX Sensor 1/1 Performance - Signal Stuck Low. P1288-00 - NOX Sensor 1/2 Zero Offset Too High. P1289-00 - NOX Sensor 1/2 Zero Offset Too Low.…

TOYOTA · 2014-12-11

TSB: Some 2012 ? 2015 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Codes (DTCs) P0171/P0174 (System too Lean Bank 1/Bank 2), P0172/P0175 (System too Rich Bank 1/Bank 2), P1604 (Startability Malfunction), and/or P1605 (Rough Idling) after attempting to start the engine. Alcohol Density Estimate values may be high even though the vehicle was fueled with regular fuel (E0/E10). The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to address this condition. Use the following Repair Procedure to reprogram the ECM (PCM). ©

TOYOTA · 2014-12-11

TSB: Some 2012 ? 2015 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Codes (DTCs) P0171/P0174 (System too Lean Bank 1/ Bank 2), P0172/P0175 (System too Rich Bank 1/Bank 2), P1604 (Startability Malfunction), and/or P1605 (Rough Idling) after attempting to start the engine. Alcohol Density Estimate values may be high even though the vehicle was fueled with regular fuel (E0/E10). The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to address this condition. Use the following Repair Procedure to reprogram the ECM (PCM). ©

CHEVROLET · 2014-11-13

This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp, rough running, and/or lack of power. Technician may find Diagnostic Trouble Codes P0101, P0171, P0172, P0174, and/or P0175 set. Technician will need to inspect the hydrocarbon absorber pad that is on the inside of the air cleaner lid to ensure that it is properly secured to the lid. If the hydrocarbon absorber pad is found loose, technician will need to replace the air cleaner lid.

JEEP · 2014-10-17

Flash: MIL Illumination Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Code(s) may have been set erroneously: ? P0087-00 - Fuel Rail Pressure Too Low. ? P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. ? P0171-00 - System Too Lean (Bank 1). ? P0172-00 - System Too Rich (Bank 1). ? P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. ? P225D-00 - NOX Sensor 1/1 Performance - Signal Stuck Low. ? P1288-00 - NOX Sensor 1/2 Zero Offset Too High. ? P1289-00 - NOX Sensor 1/2…

CADILLAC, CHEVROLET, GMC · 2014-01-30

This Preliminary Information communication provides information to the technician about vehicles that have a an extended crank on cold start, brief rough running on cold start, black exhaust color, and/or Service Engine Soon Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Code P0172 and or P0175. Technician will need to check the Fuel Alcohol Content parameter found in the Fuel Trim Data List of the scan tool and the measured ethanol content of a fuel sample using the J44175 tester. If the difference is 17% or greater, reprogram the Engine Control Module with the latest calibrations from TIS2web.

BUICK, CHEVROLET, GMC · 2013-10-04

12313B - Special Coverage (revised warranty information). The chrome layer on the balance chain pins may wear, allowing the chain to stretch. This would cause an engine noise, and if left untreated, could cause the chain to break, leading to engine damage. In addition, the fuel pump plunger shaft seal may wear and allow fuel to leak into the crankcase, setting a P0172 DTC, and illuminating the Malfunction Indicator Light. This can cause engine run-on and/or the engine to run rough. If this condition occurs within the stated terms, dealers will replace the engine balance chain and the fuel pump.

BUICK, CHEVROLET, GMC · 2013-07-30

12313A - Special Coverage (revised part information). The chrome layer on the balance chain pins may wear, allowing the chain to stretch. This would cause an engine noise, and if left untreated, could cause the chain to break, leading to engine damage. In addition, the fuel pump plunger shaft seal may wear and allow fuel to leak into the crankcase, setting P0172 DTC, and illuminating the Malfunction Indicator Light. This can cause engine run-on and/or the engine to run rough. If this condition occurs within the stated terms, dealers will replace the engine balance chain and fuel pump.

BUICK, CHEVROLET, GMC · 2013-07-16

12313 - Special Coverage. The chrome layer on the balance chain pins may wear, allowing the chain to stretch. This would cause an engine noise, and if left untreated, could cause the chain to break, leading to engine damage. In addition, the fuel pump plunger shaft seal may wear and allow fuel to leak into the crankcase, setting P0172 DTC, and illuminating the Malfunction Indicator Light. This can cause engine run-on and/or the engine to run rough. If this condition occurs within the stated terms, dealers will replace the engine balance chain and fuel pump.

TOYOTA · 2013-06-06

Some 2012 ? 2013 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Codes (DTCs) P0171/P0174 (System too Lean Bank 1/ Bank 2), P0172/P0175 (System too Rich Bank 1/Bank 2), P1604 (Startability Malfunction), and/or P1605 (Rough Idling) after attempting to start the engine. Alcohol Density Estimate values may be high even though the vehicle was fueled with regular fuel (E0/E10). The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to address this condition. Use the following Repair Procedure to reprogram the ECM (PCM).

TOYOTA · 2013-04-26

Some 2012-2013 model year Sequoia and Tundra vehicles with the 3UR-FBE engine may exhibit a MIL "ON" condition with DTC P0171/P0174 (lean), P0172/P0175 (rich), P1604 Startability, and/or P1605 Rough Idle after attempting to start the engine.

CHEVROLET · 2013-03-04

This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp, rough running, and/or lack of power. Technician may find Diagnostic Trouble Codes P0101, P0171, P0172, P0174, and/or P0175 set. Technician will need to inspect the hydrocarbon absorber pad that is on the inside of the air cleaner lid to ensure that it is properly secured to the lid. If the hydrocarbon absorber pad is found loose, technician will need to replace the air cleaner lid.

INFINITI · 2013-01-02

IF YOU CONFIRM: Any of the following DTCs are stored in the ECM: - P0031 / P0051, P0032 / P0052, P0130 / P0150, P0133 / P0153, P2A00 / P2A03, P1148 / P1168 OR Any of the following DTCs are stored in the ECM as a result of one of the A/F sensors: - P0300 - P0308, P0171 / P0174, P0172 / P0175 ACTION: 1. Replace the A/F sensor that relates to the stored DTC(s) (B1 and/or B2). 2. Refer to step 7 in the SERVICE PROCEDURE to confirm if ECM reprogramming applies. 3. If it applies, reprogram the ECM. See this bulletin for further detail.

BUICK, CADILLAC, CHEVROLET, GMC · 2010-06-01

BUICK/CADILLAC/CHEVROLET/GMC: CHECK ENGINE LIGHT ON; DTCS P0172 AND P0175; ENGINE RUNS ROUGH (FOLLOW DIAGNOSIS AND REPLACE HIGH PRESSURE FUEL PUMP). *PE UPDATED 3/28/11. MODEL YEAR 2010-LACROSSE, CTS, SRX, EQUINOX AND TERRAIN. *PE

HUMMER, SAAB · 2009-04-01

VARIOUS DRIVEABILITY FUNCTIONS DUE TO CLOGGED FUEL INJECTORS, MIL/SES DTC'S P0171, P0172, P0174, P0300, P1174, P1175. *KB UPDATED 08-15-07. *KB UPDATED 8/4/09. *PE

MERCEDES-BENZ · 2007-11-02

ENGINE VIBRATING, RPM FLUCTUATIONS AT IDLE OR POOR ACCELERATOR RESPONSE WITH CODES P2020, P0172, P2046, P201C OR P201A IN THE ENGINE CONTROL UNIT. MODEL C230CL. *TT UPDATED 1/30/08. *NJ

CADILLAC, CHEVROLET, GMC · 2007-10-01

EI07239 - 5.3L, LMG, LC9 DRIVEABILITY SYMPTOMS, HESITATION, MISS, LACK OF POWER, DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0171, P0172, P0174, P1174, P1175, CHECK ENGINE LIGHT, MIL, INJECTOR. *NJ UPDATED 2/19/08. *NJ