37,120 views
Engine diagnostics using USB Autoscope and Px script by Andrey Shulgin More details - http://injectorservice.com.ua/script_... Px script measures, calculates and analyzes key pneumatic characteristics of the cylinder, intake and exhaust tracts, valve timing mechanism and ignition timing system operation, and also evaluates the mutual influence of these systems on each other. The script is based on automatic analysis of the cylinder pressure graph obtained using a pressure sensor screwed in place of the spark plug. To perform this test, it is enough to install a pressure sensor in place of the spark plug, and connect a spark gap and a synchronization sensor to the high-voltage wire of this cylinder. Allows you to: evaluate the tightness of the cylinder; calculate the geometric compression ratio; automatically measure the actual valve timing phases; show the actual gas exchange process in the cylinder in the form of animation; identify insufficient filling of the cylinder with a fresh mixture and establish its causes; check the efficiency of the turbocharger, supercharger, variable valve timing system (Vanos, VVT…), variable valve lift system (VTEC…), variable intake manifold geometry system, intake manifold resonator system; evaluate the efficiency of the turbocharger; identify unacceptably high cylinder filling due to incorrect operation of the supercharger or turbocharger; identify increased engine power consumption for cleaning the cylinder from exhaust gases; identify engine operating modes in which the ignition timing angles are not optimal. http://injectorservice.com.ua/