System diagnosis
Another important feature of microcomputer engine control systems is their ability to…
Automatic system adjustment
Another important feature of microcomputer engine control systems is their ability to…
Evaporative emissions canister purge
During engine-off conditions, the fuel stored in the fuel system tends to…
Closed-loop ignition timing
The ignition system described in the foregoing section is an open-loop system.…
Electronic ignition control
An engine must be provided with fuel and air in correct proportions…
Idle speed control
Idle speed control is used by some manufacturers to prevent engine stall…
Closed-loop control
Perhaps the most important adjustment to the fuel injector pulse duration comes…


