The Diesel Combustion Analyser Installation with Single Sensor is developed to use for one up to four engines, monitoring the cylinder pressure and fuel injection system. Operating costs, exspecially labor and maintance costs or not running hours, get shorter. The superficial intention is to optimize engine operations while saving time and investigations. The system is permanently wired up and connected with a PC. A junction box on each engine allows easy connection of the pressure sensor and the control unit to take a measurement.