The manufacturer ECU is still in full control of the engine, and, how much power it creates. So what can be done to prevent voiding your warranty, and is this alternative method safe?Īs the TDI-Tuning box is a Pre-ECU modification. In turn, your warranty is now null and void. The remap will completely rewrite the calculations in the reference table, this means the manufacturer is no longer in control of the power output of the vehicle.
However, this route is much more intrusive and problematic than a TDI-Tuning Box. Rewriting or remapping these values are what generates additional power from the engine. If the turbo pressure is a certain amount, then a certain amount of fuel and air will be sent to the combustion chamber. Take a look at the graphic below to understand how an ECU works.Īs seen above, the ECU works like a reference table. Remapping the ECU means the brain of the car has been permanently altered. The huge benefit of altering the values before the ECU is that the manufacturer settings remain in full control of the engine. Pre-ECU / ECU Changes: What's the difference?Ī Pre-ECU change is altering the value of a parameter before it gets to the Electronic Control Module (ECU). Take a look at the graphic below to further understand how a TDI-Tuning box interacts with the engine. This is the brain of the vehicle, it chooses how much fuel and air is sent to the combustion chamber. The signals are optimised here and sent onwards to the ECU (Electronic Control Unit). This vehicle harness takes the signals being sent from your turbocharger, fuel sensor, and RPM sensor to the TDI-Tuning Box.
It does this by using a custom made vehicle harness unique to your make/model. How does a tuning box interact with the engine?Ī TDI-Tuning Box connects to your engine sensors. How does it work? Does it damage anything? If you would like to have clarity on any of these questions, then read on. Our featured article this month is all about how a TDI-Tuning Box box interacts with your engine.