Engine Performance Computerized
Engine Controls with Complete
Solutions 2025
A device that allows components connected to it to share sensor signals and other
information needed for normal information is: - ANSWER-Data bus
A device that monitors or measures operating conditions is called: - ANSWER-Sensor
A lean condition of an engine will result in an oxygen sensor reading on a scan tool of: -
ANSWER-200-45- millivolts
Tech A says that a special wrench may be needed to remove some oxygen sensors.
Tech B says that a standard wrench is appropriate. Who is correct? - ANSWER-Tech A
Tech A says that an analog signal can be read directly by the PCM and other modules.
Tech B says that the PCM and other modules can read only digital signals and that
analog signals must be converted before they are understood. Who is correct? -
ANSWER-Tech B
Tech A says that on 1996 or newer vehicles, the DLC is located under the dash near
the steering column. Tech B says that on 1996 or newer vehicles, the DLC is located in
the engine compartment. Who is correct? - ANSWER-Tech A
Tech A says that stepper motors may be used to control engine components such as
the IAC valve. Tech B says that stepper motors are used where precise movements are
required. Who is correct? - ANSWER-Both Tech A & Tech B
Tech A says that you should disconnect the battery ground cable before servicing a
PCM and wear an approved grounding strap. Tech B says this is unnecessary. Who is
correct? - ANSWER-Tech A
What 3 facts does a VIN number indicate? - ANSWER-1. When a vehicle was made
2. Vehicle make & type
3. Type of engine
What does the eighth digit in a VIN indicate? - ANSWER-Type of engine
What does the fifth digit of the VIN indicate? - ANSWER-Describes the vehicle's
platform, such as whether it is a car or sport utility vehicle.
What does the tenth digit of a VIN indicate? - ANSWER-Year of the vehicle
Engine Controls with Complete
Solutions 2025
A device that allows components connected to it to share sensor signals and other
information needed for normal information is: - ANSWER-Data bus
A device that monitors or measures operating conditions is called: - ANSWER-Sensor
A lean condition of an engine will result in an oxygen sensor reading on a scan tool of: -
ANSWER-200-45- millivolts
Tech A says that a special wrench may be needed to remove some oxygen sensors.
Tech B says that a standard wrench is appropriate. Who is correct? - ANSWER-Tech A
Tech A says that an analog signal can be read directly by the PCM and other modules.
Tech B says that the PCM and other modules can read only digital signals and that
analog signals must be converted before they are understood. Who is correct? -
ANSWER-Tech B
Tech A says that on 1996 or newer vehicles, the DLC is located under the dash near
the steering column. Tech B says that on 1996 or newer vehicles, the DLC is located in
the engine compartment. Who is correct? - ANSWER-Tech A
Tech A says that stepper motors may be used to control engine components such as
the IAC valve. Tech B says that stepper motors are used where precise movements are
required. Who is correct? - ANSWER-Both Tech A & Tech B
Tech A says that you should disconnect the battery ground cable before servicing a
PCM and wear an approved grounding strap. Tech B says this is unnecessary. Who is
correct? - ANSWER-Tech A
What 3 facts does a VIN number indicate? - ANSWER-1. When a vehicle was made
2. Vehicle make & type
3. Type of engine
What does the eighth digit in a VIN indicate? - ANSWER-Type of engine
What does the fifth digit of the VIN indicate? - ANSWER-Describes the vehicle's
platform, such as whether it is a car or sport utility vehicle.
What does the tenth digit of a VIN indicate? - ANSWER-Year of the vehicle
