Code P1031 "Reduced Engine Power"
Code P1031 "Reduced Engine Power"
I see this is a pretty common thing across the board, Is there an air fuel ratio sensor to replace? Or the high fuel pressure pump is the only fix? Along with fuel sender and sensor? Not sure where to start. I noticed an odd burning plastic smell last night and got this error this morning. Want to make sure I am addressing the right issue correctly. Thanks in advance guys
Hey Guys, Before ya'll start replacing your HPFP for no reason, please please check out this Informational Bulletin in regards to this specific issue.... In short, check your HPFP Sensor first, under the intake manifold before you go out replacing your HPFP, especially if you pop yoir oil cap and dont smell clear signs of Gasoline. Please check it out...
Copyright ? 2013, ALLDATA
10.52SS
Page 1
Vehicle: All Technical Service Bulletins
Fuel System * Unnecessary HP Fuel Pump Replacement
Quick Info 2
55/11
ENU
2463
July 8, 2011
The present document was valid at the time of print. A later version may be available online
Unnecessary Replacement of High*Pressure Fuel Pump (55/11)
Model year: as of 2009 up to 2011
Information
^ Document with limited validity
This Quick Information is valid until December 31, 2011
Vehicle Type:
Boxster/Cayman (987) model line
Carrera (997) model line
Cayenne (92A) model line
Panamera (970) model line
Concerns:
High*pressure fuel pump
Information:
We have discovered that the high*pressure pump is increasingly being replaced, but in subsequent tests carried out by the manufacturer,
these high*pressure pumps are found to be functioning correctly.
Due to various customer complaints, such as
^ engine start problems
^ reduced engine power
and the following fault memory entries in the DME control unit
^ P0190 * Fuel high*pressure sensor
^ P1030 * Fuel high*pressure sensor stuck
the high*pressure pump is being replaced (complaints can vary and problems can occur independently of each other).
In most cases, the sensor of the high*pressure pump is defective and is the cause of these complaints.
Action Required:
Diagnose the faults and work through the fault codes using "Guided Fault Finding" in PIWIS Tester II.
Model year as of 2009, Model year up to 2011
C02, C36
Vehicle: All Technical Service Bulletins Fuel System * Unnecessary HP Fuel Pump Replacement Quick Info 2 55/11 ENU 2463
2010 Porsche Boxster (987) F6*2.9LCopyright ? 2013, ALLDATA
10.52SS
Page 1
Vehicle: All Technical Service Bulletins
Fuel System * Unnecessary HP Fuel Pump Replacement
Quick Info 2
55/11
ENU
2463
July 8, 2011
The present document was valid at the time of print. A later version may be available online
Unnecessary Replacement of High*Pressure Fuel Pump (55/11)
Model year: as of 2009 up to 2011
Information
^ Document with limited validity
This Quick Information is valid until December 31, 2011
Vehicle Type:
Boxster/Cayman (987) model line
Carrera (997) model line
Cayenne (92A) model line
Panamera (970) model line
Concerns:
High*pressure fuel pump
Information:
We have discovered that the high*pressure pump is increasingly being replaced, but in subsequent tests carried out by the manufacturer,
these high*pressure pumps are found to be functioning correctly.
Due to various customer complaints, such as
^ engine start problems
^ reduced engine power
and the following fault memory entries in the DME control unit
^ P0190 * Fuel high*pressure sensor
^ P1030 * Fuel high*pressure sensor stuck
the high*pressure pump is being replaced (complaints can vary and problems can occur independently of each other).
In most cases, the sensor of the high*pressure pump is defective and is the cause of these complaints.
Action Required:
Diagnose the faults and work through the fault codes using "Guided Fault Finding" in PIWIS Tester II.
Model year as of 2009, Model year up to 2011
C02, C36
Hey Guys, Before ya'll start replacing your HPFP for no reason, please please check out this Informational Bulletin in regards to this specific issue.... In short, check your HPFP Sensor first, under the intake manifold before you go out replacing your HPFP, especially if you pop yoir oil cap and dont smell clear signs of Gasoline. Please check it out...
Copyright ? 2013, ALLDATA
10.52SS
Page 1
Vehicle: All Technical Service Bulletins
Fuel System * Unnecessary HP Fuel Pump Replacement
Quick Info 2
55/11
ENU
2463
July 8, 2011
The present document was valid at the time of print. A later version may be available online
Unnecessary Replacement of High*Pressure Fuel Pump (55/11)
Model year: as of 2009 up to 2011
Information
^ Document with limited validity
This Quick Information is valid until December 31, 2011
Vehicle Type:
Boxster/Cayman (987) model line
Carrera (997) model line
Cayenne (92A) model line
Panamera (970) model line
Concerns:
High*pressure fuel pump
Information:
We have discovered that the high*pressure pump is increasingly being replaced, but in subsequent tests carried out by the manufacturer,
these high*pressure pumps are found to be functioning correctly.
Due to various customer complaints, such as
^ engine start problems
^ reduced engine power
and the following fault memory entries in the DME control unit
^ P0190 * Fuel high*pressure sensor
^ P1030 * Fuel high*pressure sensor stuck
the high*pressure pump is being replaced (complaints can vary and problems can occur independently of each other).
In most cases, the sensor of the high*pressure pump is defective and is the cause of these complaints.
Action Required:
Diagnose the faults and work through the fault codes using "Guided Fault Finding" in PIWIS Tester II.
Model year as of 2009, Model year up to 2011
C02, C36
Vehicle: All Technical Service Bulletins Fuel System * Unnecessary HP Fuel Pump Replacement Quick Info 2 55/11 ENU 2463
2010 Porsche Boxster (987) F6*2.9LCopyright ? 2013, ALLDATA
10.52SS
Page 1
Vehicle: All Technical Service Bulletins
Fuel System * Unnecessary HP Fuel Pump Replacement
Quick Info 2
55/11
ENU
2463
July 8, 2011
The present document was valid at the time of print. A later version may be available online
Unnecessary Replacement of High*Pressure Fuel Pump (55/11)
Model year: as of 2009 up to 2011
Information
^ Document with limited validity
This Quick Information is valid until December 31, 2011
Vehicle Type:
Boxster/Cayman (987) model line
Carrera (997) model line
Cayenne (92A) model line
Panamera (970) model line
Concerns:
High*pressure fuel pump
Information:
We have discovered that the high*pressure pump is increasingly being replaced, but in subsequent tests carried out by the manufacturer,
these high*pressure pumps are found to be functioning correctly.
Due to various customer complaints, such as
^ engine start problems
^ reduced engine power
and the following fault memory entries in the DME control unit
^ P0190 * Fuel high*pressure sensor
^ P1030 * Fuel high*pressure sensor stuck
the high*pressure pump is being replaced (complaints can vary and problems can occur independently of each other).
In most cases, the sensor of the high*pressure pump is defective and is the cause of these complaints.
Action Required:
Diagnose the faults and work through the fault codes using "Guided Fault Finding" in PIWIS Tester II.
Model year as of 2009, Model year up to 2011
C02, C36
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