A motor control unit (ECU) controls the air-fuel proportion. It decides the measure of fuel that should be infused. The choke position sensor shows the choke position. The mass stream sensor tells the abundance measure of air being sucked. In view of these boundaries, the ECU infuses the ideal measure of fuel into the motor. Fuel will likewise be infused if the motor control temperature sensor shows that the motor necessities really warming.
An ECU likewise controls start timing to give further developed economy and force. On seeing a thump, it changes the circumstance of the sparkle fittingly (Engine Control Unit). On the off chance that the thump is because of low upset each moment (RPM) ECU oversees programmed transmission and changes to a lower gear.
Some ECUs have inactive speed control. The driving rod position sensor screens the insurgency speed of the motor which has an essential job in capacities, for example, sparkle occasions, fuel infusion and valve timing. A programmable choke controls the inactive speed.
In motors with variable valve timing, the ECU controls the hour of valve opening hence improving the wind stream into the chamber. It helps the electronic valve control framework in choosing set of flaps in the camshaft. These arrangements of flaps are intended for low and high RPM.
New advances have delivered motors that don’t have cam shaft. Opening and shutting of the admission and exhaust valves is completely controlled electronically. These motors needn’t bother with starter engine. Force and drive are essentially improved. Such motors are more energy productive and less contaminating. Coordinating with ECU is set up for such motors.
Programmable ECUs have likewise been presented on the lookout for those motors that have been generously adjusted, revised and reconditioned. There are overhauled motors in which intercourse or turbocharger has been changed or added, the fumes framework has been changed or the motor has been changed over to run on an elective fuel. In the previously mentioned circumstance, a programmable ECU can be connected. ECU is modified by planning on a worksheet in an associated PC. It maps the measure of fuel to be infused into the chamber, start timing, insurgency limits, water temperature revision, transient energizing, a low fuel pressure modifier, and shut circle lambda. Progressed remain solitary ECU additionally incorporates capacities like waste entryway control, stage infusion, gear control, variable cam timing and so on An ECU utilized in race vehicles might have exceptional programming for recording information identified with all sensors for ensuing investigation and wanted rectifications.