CONTRIBUTIONS TO DIAGNOSIS OF SPARK IGNITED ENGINE OF 75 KW E36 FROM BMW 316i
The present experimental research shows methods and engineering aspects concerning measuring the load signal and throttle valve operation in a diagnosis procedure for determining the problem of engine speed oscillation. Throttle valve potentiometer signal can be a proper technical data determined for operational diagnosis of the engine in some cases. That is why in this experimental paper it was experimentally determined in order to make a proper interpretation of the errors and technical problems which led to engine speed oscillation and incorrect operation. The motor vehicle was brought into the diagnosis laboratory and it was properly inspected for electric and electronic faults by using KTS and other digital equipment. In particular it was studied the oxygen sensor operation, the air mass flow meter and the throttle valve actuator (by measuring its voltage on the inherent potentiometer). The electrical schematic was also studied in order to locate the important components.
Keywords: automotive, BMW, consumption, diagnosis, on-board
Cuvinte cheie: automobilism, consum, diagnoză, la bord
