What does the MAP diagram of an engine mean?
Then, the ignition requirements are corrected according to the knock sensor signal so that the engine operates at the optimum ignition time.
The ignition curve control chart for engine under various working conditions, said a series of sensors through to the MAP map, such as engine speed sensor, intake manifold vacuum sensor (engine load sensor), solar term door position sensor, crankshaft position sensor to determine the engine working condition, find out the required ignition engine condition here the advance in the MAP chart, according to the requirement of ignition
