EA825 Low-Pressure Fuel System Upgrade | Audi C8 RS6, RS7 - Audi 4M SQ7, SQ8, RSQ8 | Torqbyte

Overview

Torqbyte PM5 is an advanced microprocessor-controlled brushless low-pressure fuel pump (LPFP) controller. It was designed to be a complete Plug-n-Play, drop-in replacement for the OEM fuel pump PWM control module. PM5 is used to provide increased fueling in returnless direct injection fuel systems on upgraded EA825 setups.

PM5 is capable of continuously supplying the OEM fuel pump with up to 40A of current.

While the PM5 increases the capacity of the OEM fuel pump, its electronics interface directly with the ECU ensuring no diagnostics trouble codes are generated. Torqbyte's innovative technical approach built into the PM5 allows the ECU to maintain full control of the aftermarket LPFP operation and maintain the closed-loop fuel pressure control mechanism that the vehicle was originally designed with. This crucial feature is something that _none_ of the other LPFP "upgrades" currently on the market are able to offer.

Because it interfaces directly with the ECU, PM5 is able to live-stream the ECU commanded duty as well as pump actual duty, over USB, to a laptop running the free Torqbyte TorqBLPM Windows software. These logs can be very useful in identifying tuning issues or diagnosing mechanical fuel system problems.

Details

• Over 60% increase in low-pressure fuel pump flow rate
• Replaces the Factory Fuel Pump Control Module J538
• Recommended for Stage 3 and Stage 4 setups making 800HP - 1,200HP
• Retains the OEM LPFP pump and basket
• Supplied Plug-n-Play wiring adapters with OEM VAG connectors integrate seamlessly with the vehicle's factory electrical systems - No need to cut and splice any of the factory wiring
• Integrated LPFP Voltage Boosting up to 24Vdc
• Plug-n-Play CANBus integration provides access to RPM, Throttle, Load and Torque parameters
• Interfaces directly with the factory ECU or aftermarket Engine Management Systems
• Eliminates diagnostic trouble codes (DTCs)
• Fully programmable/configurable pump duty and voltage booster control with our free and easy-to-use TorqBLPM Windows application
• TorqBLPM software provides live-viewing, data-logging and playback of ECU-commanded vs. Pump-actual duty helping to diagnose ECU tuning or mechanical fuel system issues
• PM5 is the first and only LPFP driver solution on the market that enables the ECU to remain in complete closed-loop control of the requested fuel system pressure
• Works with any ECU tuning package, or even without any ECU tuning at all. With the PM5 you are not limiting your options by using a fueling solution that forces you to use only one vendor's ECU tuning suite.
• Reliable, easy to install and operate.
• Overdesigned using the highest-quality automotive and industrial grade electronic components that far exceed the operating ratings and life cycle of the OEM electronic modules
• Fully manufactured and tested in Canada

Plug-n-Play Wiring

All EA825 kits are provided with custom-made PnP wire adapters that provide seamless integration with factory wiring without the need to cut or splice anything. This provides cleaner and more reliable electrical connections and also means that a vehicle can be returned to factory configuration, if required.

LPFP Voltage Boosting

The PM5 with Integrated Voltage Boosting includes an advanced quad polyphase synchronous voltage booster that raises the incoming battery or alternator voltage and  supplies the pump with a variable voltage of 15Vdc to 24Vdc. The output voltage level is user-adjustable and is maintained even when the input voltage (from the battery or alternator) dips down to as low as 8Vdc.

Optional CANBus connection allows for logging of engine RPM and throttle position readings obtained over vehicle's powetrain CANBus. 

Flow Test Results

• PM5 with Integrated Voltage Boosting 

Fitment