Posted inBasics Improvements in electronic engine control Posted by admin July 16, 2021 The digital engine control system in this chapter has been made possible by a rapid…
Posted inBasics Summary of control modes Posted by admin July 16, 2021 Engine crank (start) The following list is a summary of the engine operations in the…
Posted inBasics System diagnosis Posted by admin July 16, 2021 Another important feature of microcomputer engine control systems is their ability to diagnose failures in…
Posted inBasics Automatic system adjustment Posted by admin July 16, 2021 Another important feature of microcomputer engine control systems is their ability to be programmed to…
Posted inBasics Evaporative emissions canister purge Posted by admin July 16, 2021 During engine-off conditions, the fuel stored in the fuel system tends to evaporate into the…
Posted inBasics Closed-loop ignition timing Posted by admin July 16, 2021 The ignition system described in the foregoing section is an open-loop system. The major disadvantage…
Posted inBasics Electronic ignition control Posted by admin July 16, 2021 An engine must be provided with fuel and air in correct proportions and the means…
Posted inBasics EGR control Posted by admin July 16, 2021 A second electronic engine control subsystem is the control of exhaust gas that is recirculated…
Posted inBasics Idle air control Posted by admin July 16, 2021 A block diagram of a simplified idle speed control system is shown in Fig. b.…
Posted inBasics Idle speed control Posted by admin July 16, 2021 Idle speed control is used by some manufacturers to prevent engine stall during idle. The…