VW AG EA855 Engine Tuning
VW AG EA855 Engine Tuning
Introduction
The EA855 Gen 3 (EA855.3) is a global engine suitable for MLB (Modularer Langsbaukasten/Longitudinal ) and MQB (Modularer Querbaukasten/Transverse) platforms, capable of meeting the latest emission and fuel economy targets in different markets
Engine and Gearbox tuning for the following models with the MED 17.1.62 ECUs and DQ500 DSG gearbox:
2017 - 2020 - 8V RS3 EUDM and USDM
2017 - 2020 - 8S TTRS EUDM and USDM
2019 - 2020 - F3 RSQ3 EUDM and USDM
Note: DAZA calibration codes for USDM and RoW, DNWA for OPF Calibration codes EU 6d
Supplemental Content
Platform Specific
General
Table of Contents
- 1 VW AG EA855 Engine Tuning
- 2 Introduction
- 3 Supplemental Content
- 4 Table of Contents
- 5 Summary of Software
- 6 Programming
- 7 Tuning Guide & Example Changes
- 8 Map Description and Control Functions
- 8.1 Boost Control
- 8.2 Burble
- 8.3 Cam Timing
- 8.4 Cylinder Fill Control
- 8.5 DTC, Monitoring & Diagnostics
- 8.6 Exhaust Flap
- 8.7 Exhaust Temperature Modelling and Correction
- 8.8 Fuel Shut Off
- 8.9 Fuel System
- 8.10 Fueling
- 8.11 MPI_DI Split
- 8.12 Idle Control
- 8.13 Ignition TIming
- 8.14 Injection
- 8.15 Injector Scaling
- 8.16 Injector Timing / Phasing
- 8.17 Knock Control
- 8.18 Limiters
- 8.19 Sensors
- 8.20 Torque Control
- 8.21 Valve Lift
Summary of Software
ProECU software has been introduced to allow reprogramming of the factory ECU in order to tune the necessary components of the calibration, allowing for modifications and increases in power. Pro ECU software filters several thousand OE calibration maps into a comprehensive set of maps, selected to all allow the tuner to tune the engine with similar ease, found on a standalone replacement ECUs.
The software allows easy control over most factory parameters including:
Boost targets and wastegate control
Target AFR
Ignition timing and knock control
Valve timing and lift control
Fuel delivery including fuel pump calibration (using the same style pump as OEM)
Airflow Measurement and fuel compensation
Tuning should be carried out by suitably trained individuals.
Use this document is a guide. Changes to any calibration is at your own risk.
Changes involving the evaluation of full engine load, should be carried out in the safety of a chassis dynamometer by trained personal.
The base engine should be deemed in a serviceable state of health as well as the dress kit bolted to it before attempting to tune it etc.
For the best results, ensure the engine is run on the best commonly available fuel (in the EU, RON 98 or greater)
This document is also work in progress.
Programming
For information on how to program as well as flash recovery, check out.
For more software guides check out: