CAN Convertor PQ->MQB

CAN Converter PQ → MQB

The CAN Converter PQ-MQB is designed specifically for engine swaps using VAG PQ-based engines in MQB-platform cars. Because the PQ and MQB platforms use completely different CAN bus protocols, they cannot communicate with each other at all. Without a solution, this results in non-working clusters, missing signals, and loss of key vehicle functions.

This module bridges that gap by translating signals between PQ and MQB, restoring essential systems such as RPM on the cluster, coolant and oil temperature, MIL and EPC lights, and fault code communication.

With the converter installed, essential systems such as cluster RPM, coolant temperature, MIL light, and fault code communication will function again as intended.

Support for DSG integration ensures proper gear display, shiftlock, and status signals when combining PQ engines with DSG gearboxes in MQB chassis.

It is ideal for engine swaps such as:

• R32 or R36 engines into Golf 7 / MQB chassis cars
• PQ engines in Audi A3 8V / 8P, Seat Leon 5F, Skoda Octavia MQB

The product is a work in progress, with more supported signals and functions being added over time. For the latest supported functions, check the firmware release notes before installation.

Current Functions

PQ → MQB (ECU to Car)

• RPM signal
• Coolant temperature
• Oil temperature
• Engine light (MIL)
• Oil sensor light (analog → CAN bus)
• Brake light status
• DSG gear status
• DSG gear & shifter status for cluster
• DSG shiftlock status
• Clutch status (manual transmission)
• Engine running status
• Power steering enable
• Climatronic fan control
• Radiator fan control
• EPC light

MQB → PQ (Car to ECU)

• Speed signal to ECU
• Aircon radiator fan request
• MQB gear selector conversion

Diagnostics

• OBD diagnostic passthrough for UDS
• (Note: TP2.0 is not supported by the MQB gateway)

Key Benefits

• Real-world swap compatibility: R32/R36 into Golf 7, other PQ engines into MQB cars
• Enables PQ engine swaps in MQB cars without losing core vehicle functions
• Restores cluster readings and warning lights
• Compatible with manual and DSG setups
• Supports OBD diagnostics passthrough
• Expandable — more functions will be added via future updates