ASE - Engine Performance Questions and Answers Graded A+

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ASE - Engine Performance Questions and Answers Graded A+ Magnetic pulse generators are used to provide a digital signal about component speed or position. ✔✔False A digital signal may be calle ... d a square-wave signal. ✔✔True The manifold absolute pressure (MAP) sensor monitors engine load. ✔✔True A defective O2 sensor heater may cause reduced open loop time. ✔✔False A defective vehicle speed sensor may cause improper torque converter lockup. ✔✔True A vehicle with throttle actuator control may use three throttle position sensors. ✔✔True The exhaust gas recirculation valve position sensor is a linear potentiometer mounted on top of the EGR valve. ✔✔True The knock sensor changes vibration to a frequency signal and sends the signal to the computer. ✔✔False Many modules have to be reprogrammed for the vehicle if they are to be replaced. ✔✔True Engines that have throttle actuator control require an idle air control motor. ✔✔False When checking a solenoid with an ohmmeter, there should be an infinity reading on the meter if the solenoid is good. ✔✔False If the computer activates a component or circuit by completing a ground it is referred to as a feed side driver. ✔✔False The idle air control motor works by varying the position of the throttle plate. ✔✔False The digital EGR is comprised of three solenoids that all flow different amounts of EGR. ✔✔True Many modern engines do not have adjustable ignition timing. ✔✔True Networking smaller more specialized modules is more cost effective than using one or two centralized complex modules. ✔✔True The individual modules in a CAN system are sometimes called nodes. ✔✔True [Show More]

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