2007-04-30 02:26:13 · 2 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
the computer gets a signal from the crank and delays the signal to the coil so it sparks at the appropate time it takes into concederation engine speed and load yes i said delays it knows where the engine is and anticipates top dead center and rechecks its self every turn
2007-04-30 02:51:17 · answer #1 · answered by mobile auto repair (mr fix it) 7 · 0⤊ 0⤋
The engine management system has an ECU (computer for want of a better word) which makes calcutations from various sensors around the engine. For instance there is a crankshaft speed sensor and often a camshaft sensor. A vacuum sensor to measure throttle opening. These would be the main parts which help control the advance.
2007-05-04 07:40:58 · answer #2 · answered by sticky 1 · 0⤊ 0⤋