Mitsubishi EVO 4-8

Mitsubishi EVO 4-8 Plug-in ECU User Manual

1.0 Introduction

The Mitsubishi EVO 4-8 ECU is designed to be plugged into the OEM harness to allow for a true “Plug and Play” install. The system is based on the KV Series Motorsport ECU, so all the same features are available excluding any limitations based around the OEM connector system. An Expansion port is included giving access to unused Input channels. CAN Bus 1 is also available providing additional I/O expandability.

2.0 Plugin Features

General

• KV8 ECU based platform — Dual 100MHz processors, 32MB ECU logging memory, over 1000 logging channels, 1Hz to 500Hz logging rate
• Aluminium 6061 Grade CNC billet enclosure
• Compatible with all Emtron proven motorsport features (Launch Control, Rolling Launch, Anti-Lag, Traction Control)
• Upgradeable to run the Emtron fuel model through installation of a flex meter, fuel temperature and fuel pressure sensor
• Idle speed closed loop control using DBW with advanced Throttle Mass Flow (TMF) airflow calculations
• Knock control with high speed digital filtering for each cylinder using the OEM sensor with selectable centre frequency and bandwidth
• Pre-configured calibration file loaded providing a comprehensive tuning platform
• Input Expansion Capabilities through DTM connector: 3× User Analog Volt Inputs (Fuel Temperature, Fuel Pressure, Inlet Temperature), 1× User Digital Input (Flex Meter Input and switch inputs), 2× User Analog Inputs
• Emtune software for tuning and data analysis

Communications: CAN 2.0B Bus 1 (User CAN Bus for I/O expansion — Lambda, EGT); High Speed Ethernet 100Mbps for tuning software connection.

Operating Temperature: -30 to 85°C (-22 to 185°F)

Physical: Enclosure Size 160 × 162 × 38 mm, 890g

3.0 Installation

3.1 Expansion Port

The ECU’s input capabilities can be expanded using the expansion connection, which is a male DTM 12 Way. These additional inputs can be connected to any sensor, but the recommended sensors are indicated in brackets.

Table 3.0 — Expansion Port Pinout (DTM06-12SA)

3.2 CAN Bus 1 Wiring

The ECU CAN Bus 1 is reserved for Emtron CAN Bus devices, expanding the IO capability of the ECU. The following devices can be connected: ELC1/2 (Lambda to CAN), ETC4/ETC8M (Thermocouple to CAN), EIC10/EIC16M (Input to CAN). All these CAN devices share a common power, ground and CAN pinout using a 4-way DTM.

Table 3.1 — CAN Device Power and CAN Deutsch Connector Pinout

To help with installation time, each CAN Device pin can be directly connected into the ECU IO Expansion port:

Table 3.2 — IO Expansion to CAN Device wiring

Standard CAN bus precautions apply — twisted pair (min one twist per 40mm), minimise connectors, 120 ohm 0.25W termination at each END, stub length < 0.3m (ISO 11898). All Emtron CAN devices have no on-board terminating resistor, allowing them to be wired at any position on the Bus.

3.3 Sensor Wiring

5V VRef2 Sensor Supply (Pin 2 of Expansion port) — A 250mA 5V output designed to supply automotive sensors.

Sensor 0V Reference (Pin 1 of Expansion port) — This pin should be connected directly to the 0V (Ground) pin on any low current analog sensor, for example Pressure or Temperature.

• DO NOT connect the 0V Reference pin directly to the Engine Block or ECU Ground. This is a dedicated and specialised 0V/ground output for analog sensors.
• DO NOT connect frequency-based sensor grounds to the 0V Reference pin; for example, an Ethanol content sensor. Use Pin 8 (Ground) in the Expansion port.

3.4 Ethanol Content Sensor Wiring

An Ethanol Content sensor can be wired into the ECU using the Expansion port. The following channel assignment is recommended for the GM sensor:

NoteNOTE DO NOT connect the Ethanol Content sensor ground to the “Analog Sensor 0V Reference” — use the ECU Ground from Pin 10. The Ethanol sensor produces a frequency-based output; suitable ECU channels are DI 1-8.

To configure the ECU for this sensor, select the Ethanol Sensor Input Source to DI6. The ECU will automatically decode the Ethanol Content and Fuel Temperature. Once assigned, more settings become available in the Tuning View → Engine Functions menu.

4.0 ECU Channel Assignment

Injection

Ignition

Analog Inputs

Analog Voltage Channels 7-12 have switchable pull-ups suitable for temperature measurement.

Digital Inputs

Auxiliary Outputs

Crank / Cam

5.0 Plug-in Specific Information

5.1 Fuel Model

The base ECU calibration is supplied in Speed Density mode. It is recommended to install an Emtron 4Bar MAP sensor and wire it to a spare ANV Input in the Emtron expansion port. The ECU may also be configured to run on MAF only, or using a combination of MAF and Speed Density (MAP).

5.2 Inlet Air Temperature

ANV9 (ECU Pin 72) is assigned to the Inlet Air Temperature Sensor, which is physically located in the Mass Air Flow Meter. This is not ideal for the fuel model — it is recommended to install an inlet air temperature sensor in the inlet manifold. The Mass Air Flow Meter wiring can be reassigned, or the Air Temp sensor can be wired directly to pin 3 or 4 in the Emtron expansion port connector. ANV8, 11 or 12 may then be assigned in the inputs setup page in Emtune. Some EVO models have an inlet air temperature sensor fitted; however, this is not accounted for in the Emtron Plugin ECU — it is recommended to wire to the expansion port connector.

5.3 ECU Pin 40 Configuration

ECU Pin 40 configuration depends on the model. A low current, low side driver is connected to this pin, controlled by Auxiliary Output 13.

• EVO 8 — Crank/Cam Sensor Ground: A ground pin for the Crank and Cam sensors that acts as an immobiliser function. Aux 13 needs to be switched ON to provide a ground and allow the engine to start.
• EVO 4-7 — CAT Light: The CAT light requires a ground to switch the light on. Aux 13 can be used to control this light.

6.0 Diagnostic Trouble Codes (DTCs)

On initial installation it is advised to clear all the DTCs if errors are reported. Connect to Emtune and look at the DTC status in the bottom toolbar. If there are errors the status box will be red. To open the DTC window, click on the DTC Status box in the bottom toolbar OR use File → Open DTC. Select “Clear ALL DTCs” and confirm all the Error Codes have been removed — the DTC Status box should go green. If the error codes have not all been removed, select “Update DTC” then use the DTC window to locate the sensor that is on fault.

7.0 Ordering Information

Appendix A – EVO 4-8 ECU Pinout