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Porsche // 991 (911) MK2 2016-2019 // 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
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- Porsche 997 MKII Carrera C2 3.6L 2009-12
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Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2005-08
Porsche 987C.2 Cayman 2009-12
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Porsche 955 Cayenne S / Turbo 2003-06
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970757440
The product you are viewing cross references to these numbers
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
High Pressure Fuel Injector
Sold each - 6 required per car
The injector delivers precisely measured fuel directly into
the combustion chamber under high pressure, ensuring efficient combustion, smooth
engine operation and consistent performance.
Fits:
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
Diagram Ref No 5
Manufactured to Porsche's original specifications, it provides the correct fuel delivery characteristics for these high-performance engines.
What Does the High Pressure Fuel Injector Do?
The injector sprays a precisely controlled quantity of petrol directly into the engine's combustion chamber.
Working with the engine management system and high-pressure fuel pump, it ensures accurate fuel delivery during idling, acceleration and high engine loads.
Correct injector operation is essential for maintaining engine power, fuel efficiency, smooth running and reliable combustion.
Why Do High Pressure Fuel Injectors Fail?
Fuel injectors operate under extreme pressure and
temperature conditions. Over time, they can develop problems caused by:
- Carbon deposits restricting the injector spray nozzle.
- Contaminated fuel or fine particles damaging internal components.
- Wear of internal injector valves and seals.
- Electrical faults affecting injector operation.
- Heat
cycling and prolonged high-performance engine use
A faulty injector can cause uneven fuel delivery, misfires, poor acceleration and increased fuel consumption.
When Should the Injector Be Replaced?
Replacement should be considered when an injector is confirmed faulty, leaking or unable to deliver the correct quantity of fuel.
Common symptoms include:
- Rough idling or engine misfires.
- Hesitation during acceleration.
- Reduced engine performance.
- Increased fuel consumption.
- Engine warning light illumination.
- Fuel mixture or cylinder misfire fault codes.
- Difficult starting or excessive exhaust emissions.
A malfunctioning injector can cause incorrect air-fuel mixtures and potentially damage the engine or catalytic converter if left unresolved.
Checks and Diagnosis
Before replacing an injector, check the engine fault codes, fuel rail pressure and individual cylinder misfire data.
Inspect the fuel supply system and injector electrical connections. Where necessary, carry out injector performance and leakage testing to confirm the fault.
High-pressure fuel systems require specialist depressurisation and installation procedures. Replace associated seals and mounting components as specified by Porsche.
Key Features
- Provides precise high-pressure fuel delivery.
- Supports accurate combustion and engine performance.
- Helps restore smooth idling and acceleration.
- Manufactured to original Porsche specifications.
- Six injectors required for a complete engine set.
Product Category Description – Porsche 991.2 Turbo & GT2 RS Fuel Injectors
High-pressure fuel injectors are essential components of the Porsche 991.2 Turbo, Turbo S and GT2 RS direct fuel injection systems. They deliver precisely controlled fuel quantities into each cylinder, ensuring efficient combustion and consistent engine performance.
Faulty or contaminated injectors can cause misfires, poor throttle response, increased fuel consumption and reduced engine power.
Replacing a defective injector helps restore accurate fuel delivery, reliable combustion and the performance expected from Porsche's turbocharged engines.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A111022231
The product you are viewing cross references to these numbers
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
High Pressure Fuel Injector
Sold each - 6 required per car
This OE Match High Pressure Fuel Injector is a replacement for the original injector fitted to the Porsche 991.2 Turbo, Turbo S and GT2 RS 3.8-litre twin-turbocharged petrol engines.
Fits:
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
Diagram Ref No 5
Designed to deliver precisely controlled quantities of fuel directly into the combustion chamber, it helps maintain efficient combustion, smooth engine operation and consistent power delivery.
An OE Match alternative to the Genuine Porsche injector, it provides a replacement option for restoring correct fuel injection performance.
What Does the High Pressure Fuel Injector Do?
The injector delivers a precisely measured spray of petrol directly into the combustion chamber.
Working with the high-pressure fuel pump and engine management system, it controls fuel delivery during idling, acceleration and high engine loads.
Accurate injection is essential for maintaining engine performance, fuel efficiency and smooth combustion.
Why Do High Pressure Fuel Injectors Fail?
Fuel injectors operate under extreme pressures and temperatures, making them susceptible to wear and contamination.
Common causes include:
- Carbon deposits restricting injector nozzles.
- Contaminated petrol damaging internal components.
- Wear of injector valves and sealing surfaces.
- Electrical faults affecting injector operation.
- Prolonged exposure to high temperatures and engine vibration.
A failing injector can cause uneven fuel delivery, rough running, engine misfires and reduced performance.
When Should the Injector Be Replaced?
Replacement is recommended when an injector is diagnosed as faulty, leaking or unable to deliver the correct fuel quantity.
Common warning signs include:
- Rough idling or engine misfires.
- Hesitation or loss of power during acceleration.
- Increased fuel consumption.
- Difficult starting.
- Engine management warning light.
- Fuel mixture or cylinder misfire fault codes.
- Irregular engine operation under load.
A defective injector can cause incorrect combustion and potentially damage the engine or catalytic converter if left unresolved.
Checks and Diagnosis
Before replacing the injector, check for stored engine fault codes, inspect fuel rail pressure and identify any cylinder-specific misfires.
Injector electrical connections, fuel delivery and leakage should also be checked to confirm the fault.
High-pressure fuel systems require specialist installation procedures. Associated seals and mounting components should be replaced where specified by Porsche.
Key Features
- OE Match replacement high-pressure fuel injector.
- Suitable for 3.8L twin-turbocharged DFI engines.
- Provides precise fuel delivery into the combustion chamber.
- Supports efficient combustion and engine performance.
- Helps restore smooth idling and throttle response.
- Replacement alternative to the Genuine Porsche injector.
- Six injectors required for a complete engine set.
Product Category Description – Porsche 991.2 Turbo & GT2 RS Fuel Injectors
OE Match high-pressure fuel injectors provide a replacement solution for the direct fuel injection systems fitted to Porsche 991.2 Turbo, Turbo S and GT2 RS engines.
These precision components deliver accurately measured fuel quantities directly into the combustion chambers, supporting efficient combustion, consistent power delivery and smooth engine operation.
Faulty or contaminated injectors can cause misfires, poor acceleration, increased fuel consumption and reduced engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A111022231
The product you are viewing cross references to these numbers