ECU remapping and tuning

What ecu remapping means

It is used either for more power or for better economy, and the two pull in different directions. A careful mapper reads and saves the original file first, and checks the result on the road or a rolling road.

What the job covers

• Economy and performance remapping
• Stage 1 and stage 2 tuning
• Rolling-road and road-test verification
• Original map backed up
• Adblue and sensor fault correction

When you might need it

• You want more torque for towing or loaded driving.
• You are after economy on a long commute rather than outright power.
• A previous map is on the car and you want it checked or returned to standard.

What it costs, and what changes the price

Typically £250 to £600.

• Whether the map is read through the diagnostic port or the ECU has to come out.
• Stage 1 maps, which need no hardware changes, cost less than maps that go with new parts.
• Rolling road time, if you want the result measured, is charged separately.

How long it takes

An hour or two for most cars through the diagnostic port.

Common questions