This Audi A4 with a 1.8-litre turbocharged petrol engine and ME7.5 ECU was fitted with an LPG system. The quoted factory figures are 150 hp and 210 Nm, while the initial petrol dyno run produced about 132 hp. Before the engine software was calibrated, the LPG system was adjusted and tested separately: the video gives approximately 131 hp on LPG and 132 hp on petrol.

Calibration and results on both fuels

After the software calibration, the stated results were about 171 hp on petrol and up to 181 hp on LPG. Torque readings approached 300 Nm, although figures varied slightly between runs. The engine hardware remained standard, with the LPG system and its control equipment added.

The video also recommends attention to ignition-system maintenance. Replacement of ignition components is not confirmed as completed during this job.