Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
NISSAN
Reported code forms P0171
2016-2018 NISSAN; MIL ON WITH DTC P0171, P0174, P2097, AND/OR P2099 This bulletin applies to Altima vehicles equipped with VQ35 engine only. IF YOU CONFIRM The MIL is ON with one or more of the following Air/Fuel (A/F)…
INFINITI
Reported code forms P0171
2016-2018 QX60; MIL ON WITH DTC P2097, P2099, P0171 AND/OR P0174 This bulletin applies only to vehicles equipped with the VQ35DE engine only. IF YOU CONFIRM The MIL is ON with one or more of the following Air/Fuel (A/F)…
FORD
Reported code forms P0171
Some 2015-2018 Transit vehicles built on or before 24-Jul-2018 may exhibit various drivability concerns including difficulty starting, misfires and/or an illuminated MIL with diagnostic trouble codes (DTCs) P00BD,…
NISSAN
Reported code forms P0171
NISSAN; P0171 AND P0174 SERVICE INFORMATION SERVICE INFORMATION Diagnosis for DTCs P0171 (FUEL SYS LEAN B1) and P0174 (FUEL SYS LEAN B2) have been revised for the APPLIED VEHICLES listed above. When performing diagnosis…
INFINITI
Reported code forms P0171
INFINITI; P0171 AND P0174 SERVICE INFORMATION SERVICE INFORMATION Diagnosis for DTCs P0171 (FUEL SYS LEAN B1) and P0174 (FUEL SYS LEAN B2) have been revised for the APPLIED VEHICLES listed above. When performing…
CHEVROLET, GMC, HUMMER
Reported code forms P0171
This Preliminary Information communication provides information to the technician about vehicles the have a Service Engine Soon Malfunction Indicator Lamp on and or engine running rough. Technician may find Diagnostic…
FORD
Reported code forms P0171
Some 2015-2018 Transit vehicles built on or before 24-Jul-2018 may exhibit various drivability concerns including difficulty starting, misfires and/or an illuminated MIL with diagnostic trouble codes (DTCs) P00BD,…
FORD
Reported code forms P0171
Some 2018 F-150 vehicles equipped with a 2.7L EcoBoost built on or before 12-Jul-2018 with greater than 500 miles may exhibit an illuminated Malfunction Indicator Lamp (MIL) with diagnostic trouble codes (DTC) P0300,…
FORD
Reported code forms P0171
Some 2018 F-150 vehicles equipped with a 2.7L EcoBoost built on or before 12-Jul-2018 with greater than 500 miles may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P0300, P0316, P0301-P0306, P2196,…
BUICK, CHEVROLET
Reported code forms P0171
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.…
BUICK, CHEVROLET
Reported code forms P0171
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.…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0171
This Preliminary information communicates additional diagnosticsand repairto assist in resolving a malfunction indicator lampillumination due to any combination of diagnostic trouble codes P0068 P0101 P0106 P0171 P0131…
CHEVROLET
Reported code forms P0171
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…
CADILLAC, CHEVROLET, GMC
Reported code forms P0171
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…
BUICK, CHEVROLET, GMC
Reported code forms P0171
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Engineering Information ? Malfunction Indicator Lamp (MIL) On DTCs P0171 Fuel Trim System Lean Bank…
MAZDA
Reported code forms P0171
Some vehicles may experience the Check Engine Light ON with DTC P0171 (Fuel Trim too Lean) and possibly DTCs P030X (Misfire). Vehicles having this concern should use the following Inspection/Repair procedure.
BUICK, CHEVROLET, GMC
Reported code forms P0171
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Engineering Information ? Malfunction Indicator Lamp (MIL) On DTCs P0171 Fuel Trim System Lean Bank…
TOYOTA
Reported code forms P0171
T-TT: Vehicles may experience various drivability concerns. Upon diagnosis, technicians commonly find no or low fuel pressure as well as a variety of DTCs (Commonly P1603, P1604, P1605, P0171, P0300, P0302, P0304,…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0171
This engineering informational bulletin ends the need for information from the field on vehicles that have the condition of Malfunction Indicator Lamp Illuminated with DTC P0171 and/or P0174.
BUICK, CHEVROLET, GMC
Reported code forms P0171
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Engineering Information ? Malfunction Indicator Lamp (MIL) On DTCs P0171 Fuel Trim System Lean Bank…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0171
This Preliminary information communicates additional diagnosticsand repairto assist in resolving a malfunction indicator lampillumination due to any combination of diagnostic trouble codes P0068 P0101 P0106 P0171 P0131…
BUICK, CHEVROLET, GMC
Reported code forms P0171
Engineering Information – Malfunction Indicator Lamp (MIL) On, DTCs P0171 Fuel Trim System Lean Bank 1 and/or P0174 Fuel Trim System Lean Bank 2
BUICK, CHEVROLET, GMC
Reported code forms P0171
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Engineering Information ? Malfunction Indicator Lamp (MIL) On DTCs P0171 Fuel Trim System Lean Bank…
CHRYSLER
Reported code forms P0171
Flash: Powertrain Diagnostic and System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp…
RAM
Reported code forms P0171
Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp…
ALFA ROMEO
Reported code forms P0171
Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Engine Control Module (ECM), also known as a Powertrain Control Module (PCM) with the latest available software. Customers…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0171
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Malfunction Indicator Lamp Illuminated with DTC P0171 and/or P0174.
CHEVROLET
Reported code forms P0171
16139 - Special Coverage. On certain vehicles, a P0171 Fuel System Lean or P0101 Mass Air Flow (MAF) Sensor Performance diagnostic trouble code may set as a result of a cracked air cleaner outlet duct. Dealers are to…
FORD
Reported code forms P0171
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…
BUICK, CHEVROLET
Reported code forms P0171
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.…