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AutoAlex X Motorsport Electronics

Sep 17, 2025

When AutoAlex picked up a Renault 5 fitted with a Volvo 480 Turbo engine, it came with a few “quirks”: a old aftermarket ECU that didn’t seem to work, and a wiring loom that looked like it had seen better days.

That’s when AutoAlex reached our to us to see if we could lend a hand. We supplied Alex and the guys with our latest ME221 ECU and one of our Zetec plug-and-play harnesses, chosen because it was the closest fit to the setup already in the car. With a few connector changes and some fresh sensors, including a 3-bar MAP sensor and Bosch LSU wideband, the transformation began.


From Non-Runner to First-Turn Fire-Up in three hours!

After years off the road, the Renault 5 hadn’t run for quite some time, but with the ME221 fitted, timing set, and everything wired correctly, the results spoke for themselves:

✅ Spark confirmed
✅ Fuel confirmed
✅ Started on the key — first time!

It’s moments like this that show why the ME221 is the go-to choice for modern retrofits, fast road and race cars alike.


The Results:

Started on the button, ready to get calibrated on a dyno!


Why Choose the ME221?

The same kit Alex used in this project is available right now. With the ME221, you’ll get:

  • Plug-and-play simplicity (with a range of harnesses to suit different builds)

  • Modern ECU features: boost control, launch control, flat-shift, wideband closed-loop.

  • Reliable starts and drivability — even on cars that have sat for years.

  • Proven tuning support, with dyno partners across the UK and UK based factory support,


Watch the Build

Catch Alex’s full Renault 5 ME221 install here:
👉 Watch the video


Get the Kit

Want the same setup for your car? Order the ME221 ECU and harness kit today:
👉 Buy now

Bring your project to life with Motorsport Electronics.

Interested in becoming a partner?

IGNITION-ONLY ECU's

Nodiz Gen-X

ME100 Gen-X

Support for 4 Cylinders

Supports up to a 4-cylinder engine with a wasted spark coil pack

R

YES

R

YES

Support for 6/8 Cylinders

Supports up to a 8-cylinder engine in wasted spark only

R

NO

R

YES

Mappable ignition

Live programmable ignition table for optimising ignition timing

R

YES

R

YES

Premade harnesses for different engines

Harness available to suit a range of engines

R

YES

R

YES

Uses our free MEITE tuning software

Uses our advanced MEITE tuning software available from the website for Windows 7 or above

R

YES

R

YES

VVT Control

Closed loop variable valve timing control, both fully variable eg ST170 or switched eg VTEC

R

NO

R

YES

PLUG-IN ECU's

ME221

ME442

Factory ECU replacement

Straight replacement for the factory ECU, plugs into the original engine harness

R

YES

R

YES

Boost Control

Increase and control boost levels using an external solenoid

R

YES

R

YES

VVT control

Closed loop variable valve timing control, both fully variable eg ST170 or switched eg VTEC

R

YES

R

YES

CAN bus

CAN output to send engine data to a digital display

R

YES

R

YES

Knock control

Can interpret a signal from a knock sensor and retard timing accordingly for engine protection

R

YES

R

YES

Flex Fuel

Can interpret a signal from a fuel sensor and alter the fuel delivery accordingly

R

YES

R

YES

Onboard MAP sensor

Manifold absolute pressure sensor fitted on the ECU

R

YES

R

YES

Onboard logging

SD Card slot used to record engine data used for diagnosis

R

NO

R

YES

Onboard wideband & sensor

Wideband integrated into the ECU. Sensor and cable included in the box

R

NO

R

YES

Exhaust Gas temp input

Can interpret a signal from an exhaust gas temperature sensor for engine protection and calibration

R

NO

R

YES

Wire-In ECU's

ME221

ME360

ME442

4 Cylinders fully sequential

Supports up to a 4-cylinder engine with a wasted spark coil pack or coil-on-plug

R

YES

R

YES

R

YES

6 Cylinders fully sequential

Supports up to a 6-cylinder engine with a wasted spark coil pack or coil-on-plug

Q

NO

R

YES

R

YES

8 Cylinders fully sequential

Supports up to a 8-cylinder engine with a wasted spark coil pack or coil-on-plug

Q

NO

Q

NO

R

YES

Premade harnesses for different engines

Harness available to suit a range of engines rather than wiring up your own

R

YES

R

YES

R

YES

Coil on plug support

Suitable for individual coil-on-plug ignition or wasted spark ignition

R

YES

R

YES

R

YES

Boost Control

Increase and control boost levels using an external solenoid

R

YES

R

YES

R

YES

VVT control

Closed loop variable valve timing control, both fully variable eg ST170 or switched eg VTEC

R

YES

R

YES

R

YES

CAN bus

CAN output to send engine data to a digital display

R

YES

R

YES

R

YES

Knock control

Can interpret a signal from a knock sensor and retard timing accordingly for engine protection

R

YES

R

YES

R

YES

Onboard wideband lambda

Can interpret a signal from a LSU4.9 wideband lambda sensor to monitor air/fuel mixture for engine protection or calibration

R

YES

R

YES

R

YES

Onboard data logging

8GB SD card fitted to record engine data used for diagnostics or calibration review

R

YES

R

YES

R

YES

Drive-By-Wire Throttle

Support for electronic throttles (e-throttle/DBW)

R

NO

R

YES

R

YES

Exhaust Gas temp input

Can interpret a signal from an exhaust gas temperature sensor for engine protection and calibration

R

NO

R

YES

R

YES

GUIDE TO PLUG-IN ECUS

GUIDE TO ECU TYPES
GUIDE TO IGNITION ONLY ECUS
GUIDE TO ECU TYPES
 

GUIDE TO WIRE-IN ECUS

GUIDE TO ECU TYPES