This 2011 Opel Astra 1.7 CDTI was checked after its previous software produced a high smoke reading. The video gives a previous value of 1.64 and a stated limit of 1.5. With the factory software, the dyno produced about 100 hp and 224 Nm, although the quoted factory rating is 110 hp.

Calibration results and turbo condition

After AutoChip recalibrated the ECU, the dyno showed approximately 150 hp and 350 Nm. A repeat run recorded about 354 Nm. The smoke-meter coefficient with this calibration was 1.39; the video does not state a unit. These figures are readings from the equipment used for this vehicle.

During the engine inspection, oil traces were noticed near the turbocharger and in the air path. Turbocharger repair was recommended as a next step, but it had not been carried out in the video.