We are now offering Performance Tuning and ECU remapping in house for all vehicles
What is it?
In recent years drivers have become more familiar with the little black boxes that control their cars vital functions, and more aware of the opportunities to ‘tweak’ the settings.
The process used to be called chipping, as it literally meant swapping a microchip in your car’s Electronic Control Unit (ECU) with a modified version. Nowadays the black art has advanced to the point where home-brewed engine remapping software is available to download from various internet groups for brave and/or tech-savvy home-tuners who like to experiment. We’d never recommend that route, as unsurprisingly there’s a significant risk of causing expensive engine damage if a remap is not done properly.
Why do it?
There are two primary reasons for wanting a remap, and they’re called power and torque. When your car left the factory there’s a very good chance its performance was deliberately muted in order to meet product planning objectives or economy and efficiency targets.
These days the power and performance of most cars is limited, not by any particular mechanical factor, but by the software running in the engine control unit (ECU).
Computer algorithms running behind the scenes while you’re driving a modern car affect all sorts of parameters, such as ignition timing, air/fuel ratio and turbocharging boost pressure.
So if you want greater performance and pulling power from your car, or alternatively if you’re seeking mpg improvements, the first place to look is the little black box under the bonnet. Here at Auto Express we receive plenty of emails asking advice about ECU software changes, and we’ve compiled this guide to explore the pros, cons and costs.