torqbyte PM4 Fuel Pump Controller VW · Audi

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torqbyteSKU: PM4 Kit – MQB AWD DIY Difficulty: INTERMEDIATE


Select Vehicle: MQB AWD
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Description

Torqbyte PM4 is an advanced low-pressure fuel pump (LPFP) driver module designed as a complete Plug-n-Play replacement for the factory VAG fuel pump PWM control module in order to overcome the challenges of increased fueling in VAG returnless direct injection fuel systems where the ECU and the factory fuel pump pulse width modulator (PWM) control module perform closed loop control of the fuel system line pressure.

In the factory configuration, factory fuel pump control module is only capable of supplying enough current to drive the factory in-tank low pressure fuel pump the vehicle was originally equipped with.  High capacity aftermarket in-tank fuel pumps generally draw more current than the factory control module was designed to supply.

Using high capacity fuel pumps often overloads the factory LPFP controller and causes it to overheat or overcurrent.  This overloading and overheating results in intermittent pump operation, which causes a drop in fuel flow and line pressure as well as dangerous fuel cuts.  Many ECU tuning packages attempt to work around this problem by artificially limiting the maximum pump duty in an attempt to keep the pump current just below the factory controller’s shutdown threshold.  This approach leaves a significant percentage of the aftermarket pump’s capacity unused thus defeating the whole purpose behind running a high capacity aftermarket fuel pump.  Torqbyte PM4 provides the best and most effective solution to this problem.

Features:

  • Complete Plug-n-Play factory Fuel Pump Control Module replacement
  • Interfaces directly with the ECU and eliminates trouble codes
  • Fully programmable/configurable pump duty slope control
  • TorqVFM software with many functions
  • Complete closed-loop control of the requested fuel system pressure
  • Supports Big Turbo Setups by removing fueling bottleneck
  • Can drive two LPFPs in parallel
  • Works with any LPFP set-up that draws less than 36A
  • Works with any ECU tuning package, or even without any ECU tuning
  • Compatible with voltage boosting modules
  • Integrates seamlessly with the vehicle's factory electrical systems
  • Supplied with vehicle-specific Plug-n-Play Harness Adapters
  • Reliable, easy to install and operate
  • Overdesigned using the highest-quality Materials
  • Made and tested in Canada

What's Included:

  • torqbyte PM4 Fuel Pump Controller

Vehicle Fitment

Model   + Drivetrain  
1B Jetta 1.8T I4 [GEN 3]
1B Jetta · GLI 2.0T I4
1B Jetta · GLI 2.0T I4 [GEN 3]
1F EOS 2.0T I4
1J Jetta · GLI 1.8T I4
1K Jetta · GLI 2.0T I4
5C Beetle 1.8T I4 [GEN 3]
5C Beetle 2.0T I4
5C Beetle 2.0T I4 [GEN 3]
5N Tiguan 2.0T I4 +
5NA Tiguan 2.0T I4 [MQB] +
8J TT 2.0T I4 +
8J TT RS 2.5T I5
8J TTS 2.0T I4
8P A3 2.0T I4 +
8R Q5 2.0T I4 +
8S TT 2.0T I4 [MQB]
8S TT RS 2.5T I5 [MQB]
8S TTS 2.0T I4 [MQB]
8U Q3 2.0T I4 +
8V A3 1.8T I4 [MQB]
8V A3 2.0T I4 [MQB]
8V RS3 2.5T I5 [MQB]
8V S3 2.0T I4 [MQB]
B6 CC 2.0T I4 +
B6 Passat 2.0T I4
B7 A4 2.0T I4 +
B7 A4 3.2L V6 +
B7 Passat 1.8T I4 [GEN 3]
B7 RS4 4.2L V8
B7 S4 4.2L V8
B8 A4 2.0T I4 +
B8 A4 3.2L V6 +
B8 A5 2.0T I4 +
B8 A5 3.2L V6 +
B8 RS5 4.2L V8
B8 S4 3.0L SC V6
B8 S5 3.0L SC V6
B8 S5 4.2L V8
B9 A4 2.0T I4 +
B9 A5 2.0T I4 +
B9 RS5 2.9T V6
B9 S4 3.0T V6
B9 S5 3.0T V6
C7 A6 2.0T I4 +
MK1 Atlas 2.0T I4 [MQB] +
MK1 Beetle 1.8T I4
MK5 GTI 2.0T I4
MK6 GTI 2.0T I4
MK6 R 2.0T I4
MK7 Golf 1.4T I4 [MQB]
MK7 Golf 1.8T I4 [MQB]
MK7 Golf Alltrack 1.8T I4 [MQB]
MK7 Golf Sportwagen 1.4T I4 [MQB]
MK7 Golf Sportwagen 1.8T I4 [MQB] +
MK7 GTI 2.0T I4 [MQB]
MK7 Jetta 1.4T I4 [MQB]
MK7 Jetta · GLI 2.0T I4 [MQB]
MK7 R 2.0T I4 [MQB]

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Customer Reviews
5.0 Based on 2 Reviews
5 ★
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Filter Reviews:
P
02/11/2021
Phil

Don't skimp on fueling

A must for LPFP/MPI upgrade. Do not risk sluggish or inconsistent fuel delivery. Works as advertised and delivery was fast!

G
09/07/2020
GTI.JUTTY

The Key to Reliability

After putting big turbo, mpi, and 525 lpfp in, this is mandatory to avoid fuses being blown. You may get by for a short bit. But if you rip the car or let it idle for more than 20 min, you will want this controller to keep it stable 100% of the time. JUST DO IT. Ps. I was calling the tow truck when I ordered this. I’ve had it for a week and loved the install. Super simple.

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