TORQBYTE VAG PM4 HIGH POWER FUEL PUMP CONTROL MODULE TSI/FSI

VAG PM4 High Power FPCM

Complete Plug-n-Play replacement for the factory Fuel Pump Control Module in late-model Volkswagen Automotive Group vehicles using high-capacity, aftermarket, in-tank Low Pressure Fuel Pumps (LPFPs), such as the Audi TTRS (VAG Part No. 8J0 919 051 E), DeatschWerks DW400, or the Walbro/TIA F90000267/F90000274 (450 LPH), Walbro/TIA F90000285 (520LPH)

Interfaces directly with the ECU and eliminates diagnostic trouble codes (DTCs)

Fully programmable/configurable pump duty slope control with our easy to use TorqVFM PC software

TorqVFM software provides live-viewing, data-logging and playback of ECU-commanded vs. Pump-actual duty helping to diagnose ECU tuning or fuel system mechanical issues

PM4 is the first and only LPFP driver solution on the market that lets the ECU perform complete closed-loop control of the requested fuel system pressure regardless of what aftermarket LPFP the owner decides to install. Want to run a 23A, 520LPH Walbro F90000285 E85 pump under full control of the ECU? PM4 will let you do that. The ability to use any aftermarket LPFP, while keeping the ECU in complete control of its operation, is a key distinguishing feature not available with any competing LPFP solution

Supports big turbo setups by removing the traditional LPFP fueling bottleneck and permitting the fuel system to hold any ECU-requested pressure

A truly scalable solution. A single PM4 can drive two LPFPs in parallel Regardless of the preferred fuel system configuration, the ECU retains complete control of the low-pressure fuel system's operation

Works with any LPFP set-up that draws less than 36A at peak load and peak duty. With the PM4 you are not sacrificing future flexibility and limiting your options by using a fueling solution that only lets you use one particular LPFP make/model

Works with any ECU tuning package, or even without any ECU tuning at all. With the PM4 you are not limiting your options by using a fueling solution that forces you to use only one vendor's ECU tuning suite.

Compatible with voltage boosting modules and new high-voltage LPFPs rated for up to 20V

Integrates seamlessly with the vehicle's factory electrical systems

Supplied with vehicle-specific Plug-n-Play Harness Adapters that transfer maximum power to the LPFP sender through thick 10AWG (5.0mm^2) wires - a feature not available with inferior solutions that reuse the factory PWM control module with its thin factory LPFP wiring

Reliable, easy to install and operate.

Overdesigned using the highest-quality automotive and industrial grade electronic components that far exceed the operating ratings and endurance of the vehicle's OEM electronic modules

Built and tested in Canada

PM4 is supplied with Plug-n-Play wiring adapters that connect directly to the vehicle’s factory wiring. PM4 is housed in a rugged extruded aluminum enclosure that makes it suitable for installation under the rear seat.

On the outside, Torqbyte PM4 is enclosed in a thermally-conductive, CNC machined aluminum enclosure that is hard anodized for maximum durability.

On the inside, Torqbyte PM4's electronics showcase our top two design goals: Quality and Reliability. PM4's design relies entirely on industrial-grade electronic components from the world's leading semiconductor companies including Texas Instruments, Infineon Technologies, STMicroelectronics, ON Semiconductor and Vishay Intertechnology.

Torqbyte PM4 kits are supplied with SAE J1127 10AWG SXL and TXL automotive wire with annealed stranded copper conductors and premium-grade abrasion, chemical and moisture resistant, high temperature Crosslinked Polyethylene insulation.

All pump power adapters are supplied with the thickest possible wire gauge for the given connector family ensuring minimum line loses and maximum power transfer to the LPFP.

Vehicle Compatibility 

PM4 is available in five kit options that cover most popular VAG application. Please check your factory FPCM and Fuel Pump Connector Part No.s to ensure you are ordering the correct kit.

FSI/TSI

FPCM (Black): 1K0 906 093_
FPCM (Blue): 3C0 906 093_
Fuel Sender Top Hat (Blue): 1K0 919 051 D_
Fuel Sender Top Hat (Yellow): 8J0 919 051 _

Fuel Pump Connector: 1K0 919 231

TorqVFM Software

In the factory configuration the OEM fuel pump control module receives pump duty commands from the ECU and converts them to actual pump duty. The relationship between the ECU-commanded duty and the actual pump duty is called Slope and is fixed for each OEM module part number. There is no way to monitor the ECU-commanded duty or the actual pump duty forcing users to sift though VCDS logs when fueling problems need to be diagnosed.

Torqbyte PM4 also receives its commands directly from the ECU, but allows the user to program in their own custom Slope values that are more or less aggressive than the nominal Slope of a vehicle's factory module. (Note: PM4 comes pre-programmed with from the factory with the optimal Slope characteristic so no programming is required prior to installation and operation).

PM4 is also equipped with a USB connector that allows it to communicate with a PC running our free TorqVFM software. With the TorqVFM software, the user can test and configure the unit as well as live view or log ECU-commanded duty vs. actual pump duty. PM4 and TorqVFM can be invaluable for diagnosing difficult fueling issues such as inability of the actual LPFP pressure to reach or or stay at the commanded target level.