Service

Technical Information

96/23

ENU

2473

2

Message “Engine Control Fault” in the Instrument Cluster/ Fault Memory Entries to the
Oxygen Sensor Downstream of the Catalytic Converter (96/23)
Revision:

This bulletin replaces bulletin Group 2 96/23, dated August 7, 2023.

Model Year:

As of 2017 up to 2023

Vehicle Type:

Panamera (971) / Panamera Executive (971) / Panamera 4 (971) / Panamera 4 Executive
(971) / Panamera 4 Sport Turismo (971) / Panamera 4S (971) / Panamera 4S Executive (971)
/ Panamera 4S Sport Turismo (971)

Equipment:

2.9-liter twin-turbo V6 engine

Concerns:

Oxygen sensors downstream of catalytic converter

Cause:

The message ‘Engine control fault’ is displayed in the instrument cluster and the following
entries are stored in the fault memory of the DME control unit:
•
•
•
•

P227000 - Oxygen sensor downstream of catalytic converter, bank 1 – signal too lean
P227200 - Oxygen sensor downstream of catalytic converter, bank 2 – signal too lean
P209600 - Oxygen sensor correction downstream of catalytic converter, bank 1 – above lean
control limit
P209800 - Lambda correction behind catalytic converter, bank 2 – above lean control limit

At high ambient temperatures around the oxygen sensors downstream of the catalytic converter, the
measuring electrodes may become contaminated over the service life of the vehicle which can lead to a
functional impairment of the oxygen sensors and thus to the described fault pattern.
Action:

If there is a customer complaint on vehicles that were manufactured before the deployment date listed
below, replace the oxygen sensors on the catalytic converter and the turbocharger shield.

Date of
Introduction:

Standard use modified turbocharger shield from January 9, 2023.

Required parts
Part No.

Designation
– Location

Number

00004330437

 Oxygen sensor
– downstream of catalytic converter

2 pieces

AfterSales

Nov 13, 2023
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2

Service
2473

ENU

Technical Information

96/23

PAE119607

 Heat shield
– Turbocharger

1 piece

WHT008539

 Hexagon-head bolt with inner multiple-tooth
head (Duo) M10 x 80
– Dome strut to body

2 pieces

PAF912696

 M10 hexagon nut
– Dome strut to body

2 pieces

N 10664503

 Hexagon-head bolt, M8 x 45
– Side strut to body

2 pieces

Required tools
Tools:

•
•
•
•
•
•
•
•

3337 - Ring wrench set for oxygen sensor
Torque wrench, 2 – 10 Nm (1.5 – 7.5 ftlb.), e.g. V.A.G 1783 - torque wrench, 2 – 10 Nm
(1.5 – 7.5 ftlb.)
Torque wrench, 20–100 Nm (15–74 ftlb.), e.g. VAS 5820 - Torque wrench, 20-100 Nm (15-74
ftlb.)
Torque–torque –wrench, 20–400 Nm (15-296 ftlb.), e.g. VAS 6942 - Digital torque–-torque
–wrench, 20–400 Nm (15-296 ftlb.)
9866 - Support
9866/2 - Support
9900 - PIWIS Tester 4
Battery charger with a current rating of at least 90 A, VAS 5908 - battery charger 90 A

Replacing oxygen sensors downstream of catalytic converter and turbocharger shield
Work Procedure:

Information
New oxygen sensors are pre-greased.
1

Replace oxygen sensors downstream of catalytic converter and, if necessary, turbocharger shield.

 Workshop Manual '247319 Removing and installing oxygen sensor downstream of catalytic
converter (V6 biturbo)'
2

Nov 13, 2023
Page 2 of 3

Read out all fault memories using the PIWIS tester, process and delete existing faults if necessary.

AfterSales

Service

Technical Information

96/23

ENU

2473

2

Labor position and PCSS encryption
Labor position:
I No.

APOS

Labor operation

24735041

Rework oxygen sensor downstream of catalytic
converter
PCSS encryption:

Location (FES5)

24730

Oxygen sensor downstream of catalytic converter

Damage type (SA4)

1611

does not function

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.

© 2023 Porsche Cars North America, Inc.

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