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Porsche
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1991
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911 Turbo F6-3299cc 3.3L SOHC Turbo
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Technical Service Bulletins
Fuel Delivery and Air Induction: Technical Service Bulletins
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Recalls
Campaign - Defective Turbo Control Unit Software
Overview
Work Procedure
Administrative Procedure "A"
Administrative Procedure "B"
Administrative Procedure "C"
Owner Letter
Customer Interest
Filler Pipe - Fuel Odor
Engine - Hissing Sound, Low Power Output, or No Start
Turbocharger - Damage to Intake Turbine Wheel
By Symptom
Customer Interest
Filler Pipe - Fuel Odor
Engine - Hissing Sound, Low Power Output, or No Start
Turbocharger - Damage to Intake Turbine Wheel
Driveability
Engine - Hissing Sound, Low Power Output, or No Start
Loose
Turbocharger - Damage to Intake Turbine Wheel
Noise
Engine - Hissing Sound, Low Power Output, or No Start
Odors
Filler Pipe - Fuel Odor
Out of specification
Fuel/Ignition Modules - Use of Aftermarket Microchips
Recalls
Campaign - Defective Turbo Control Unit Software
Overview
Work Procedure
Administrative Procedure "A"
Administrative Procedure "B"
Administrative Procedure "C"
Owner Letter
Starting problems
Engine - Hissing Sound, Low Power Output, or No Start
Campaign - Defective Turbo Control Unit Software
Overview
Work Procedure
Administrative Procedure "A"
Administrative Procedure "B"
Administrative Procedure "C"
Owner Letter
All Technical Service Bulletins
Fuel/Ignition Modules - Use of Aftermarket Microchips
Fuel Tank - Replacement Information
Filler Pipe - Fuel Odor
Engine - Hissing Sound, Low Power Output, or No Start
Exhaust System - Sulfur Like Smell
Campaign - Defective Turbo Control Unit Software
Overview
Work Procedure
Administrative Procedure "A"
Administrative Procedure "B"
Administrative Procedure "C"
Owner Letter
Turbocharger - Damage to Intake Turbine Wheel