Review Questions
Answers for
Computerized Engine
Controls 11 Edition By
th
Steve Hatch, Tim Gilles,
Cengage (All Chapters
1-16, 100% Original
Verified, A+ Grade)
All Chapters Arranged
Reverse: 16-1
,Chapter 16
REVIEW QUESTIONS
1. Technician A says that a throttle position sensor on a Nissan ECCS application returns a
voltage to the PCM from about 0.5 V at idle to as high as 4.6 V at WOT. Technician B says that
some Nissan ECCS applications use an absolute pressure sensor to detect both ambient pressure
and intake manifold pressure. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Engine Control System
Overview
2. How much voltage should Nissan’s analog MAF sensor return to the PCM at idle?
a. 0.4 to 0.6 V
b. 1.0 to 1.7 V
c. 2.0 to 2.5 V
d. About 4.0 V
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Engine Control System
Overview
3. Nissan’s fuel temperature sensor will return a voltage of 3.5 V when the fuel in the fuel tank is
at what temperature?
a. −40°F
b. 68°F
c. 122°F
d. 330°F
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Engine Control System
Overview
4. All except which of the following can result from a cylinder misfire?
a. Production of too much CO2 in the engine
b. Overheating of the catalytic converter
c. Catalytic converter failure
d. Dumping of raw hydrocarbons into the atmosphere
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS)
,Chapter 16
5. Technician A says that some Nissan ECCS applications allow the PCM to electrically soften
the dampening effect of the front engine mount to minimize engine vibration when the engine is
idling. Technician B says on Nissan ECCS applications, the PCM may control the operation of
the cooling fan. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS)
6. Fuel pressure on port fuel–injected Nissan applications will typically vary between which of
the following?
a. 9 and 13 PSI
b. 20 and 29 PSI
c. 34 and 43 PSI
d. 46 and 55 PSI
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Outputs
7. What component has been added only to California versions of the Nissan Sentra to help it
meet the state’s SULEV rating?
a. Supercharger
b. Electrically controlled front engine mount
c. Rear heated oxygen sensor
d. Air-cleaning radiator
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Outputs
8. Which of the following meters should be used to monitor a MAF sensor signal on a Toyota
TCCS application?
a. Voltmeter
b. Hertz meter
c. Duty-cycle meter
d. Pulse-width meter
Rejoinder: Toyota Computer Controlled System (TCCS), Inputs
9. In the 2007 model year, Toyota vehicles began using an MRE sensor for which of the
following?
a. Vehicle speed sensor
b. Manifold absolute pressure sensor
, Chapter 16
c. Mass air flow sensor
d. Intake air temperature sensor
Rejoinder: Toyota Computer Controlled System (TCCS), Inputs
10. An ohmmeter is used to test a camshaft sensor on a late-model Toyota TCCS application.
With the meter’s selector set to the 4K scale, a reading of 1.213 is seen on the display.
Technician A says that this reading indicates that the camshaft sensor needs to be replaced.
Technician B says that this reading indicates that the camshaft sensor’s resistance is within
specifications for a typical late-model Toyota. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Toyota Computer Controlled System (TCCS), Inputs
11. Technician A says that the fuel pump on a Toyota TCCS application is controlled by the
ignition switch only and should always run whenever the ignition switch is turned to the Run
position. Technician B says that some late-model Toyotas use a returnless fuel injection system
with the pressure regulator located within the fuel tank. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Toyota Computer Controlled System (TCCS), Outputs
12. In the 2004 model year, Toyota vehicles began using noncontact linear Hall effect sensors for
which of the following?
a. Throttle position sensors
b. Accelerator pedal position sensors
c. Vehicle speed sensors
d. Both A and B
Rejoinder: Toyota Computer Controlled System (TCCS), Outputs
13. Technician A says that Toyota’s VVT-i system allows the PCM to advance or retard the
timing of the intake camshaft. Technician B says that if a front or side air bag is deployed on a
newer Toyota, the PCM will de-energize the fuel pump relay. Who is correct?
a. Technician A only
b. Technician B only
Answers for
Computerized Engine
Controls 11 Edition By
th
Steve Hatch, Tim Gilles,
Cengage (All Chapters
1-16, 100% Original
Verified, A+ Grade)
All Chapters Arranged
Reverse: 16-1
,Chapter 16
REVIEW QUESTIONS
1. Technician A says that a throttle position sensor on a Nissan ECCS application returns a
voltage to the PCM from about 0.5 V at idle to as high as 4.6 V at WOT. Technician B says that
some Nissan ECCS applications use an absolute pressure sensor to detect both ambient pressure
and intake manifold pressure. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Engine Control System
Overview
2. How much voltage should Nissan’s analog MAF sensor return to the PCM at idle?
a. 0.4 to 0.6 V
b. 1.0 to 1.7 V
c. 2.0 to 2.5 V
d. About 4.0 V
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Engine Control System
Overview
3. Nissan’s fuel temperature sensor will return a voltage of 3.5 V when the fuel in the fuel tank is
at what temperature?
a. −40°F
b. 68°F
c. 122°F
d. 330°F
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Engine Control System
Overview
4. All except which of the following can result from a cylinder misfire?
a. Production of too much CO2 in the engine
b. Overheating of the catalytic converter
c. Catalytic converter failure
d. Dumping of raw hydrocarbons into the atmosphere
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS)
,Chapter 16
5. Technician A says that some Nissan ECCS applications allow the PCM to electrically soften
the dampening effect of the front engine mount to minimize engine vibration when the engine is
idling. Technician B says on Nissan ECCS applications, the PCM may control the operation of
the cooling fan. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS)
6. Fuel pressure on port fuel–injected Nissan applications will typically vary between which of
the following?
a. 9 and 13 PSI
b. 20 and 29 PSI
c. 34 and 43 PSI
d. 46 and 55 PSI
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Outputs
7. What component has been added only to California versions of the Nissan Sentra to help it
meet the state’s SULEV rating?
a. Supercharger
b. Electrically controlled front engine mount
c. Rear heated oxygen sensor
d. Air-cleaning radiator
Rejoinder: Nissan: Electronic Concentrated Control System (ECCS), Outputs
8. Which of the following meters should be used to monitor a MAF sensor signal on a Toyota
TCCS application?
a. Voltmeter
b. Hertz meter
c. Duty-cycle meter
d. Pulse-width meter
Rejoinder: Toyota Computer Controlled System (TCCS), Inputs
9. In the 2007 model year, Toyota vehicles began using an MRE sensor for which of the
following?
a. Vehicle speed sensor
b. Manifold absolute pressure sensor
, Chapter 16
c. Mass air flow sensor
d. Intake air temperature sensor
Rejoinder: Toyota Computer Controlled System (TCCS), Inputs
10. An ohmmeter is used to test a camshaft sensor on a late-model Toyota TCCS application.
With the meter’s selector set to the 4K scale, a reading of 1.213 is seen on the display.
Technician A says that this reading indicates that the camshaft sensor needs to be replaced.
Technician B says that this reading indicates that the camshaft sensor’s resistance is within
specifications for a typical late-model Toyota. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Toyota Computer Controlled System (TCCS), Inputs
11. Technician A says that the fuel pump on a Toyota TCCS application is controlled by the
ignition switch only and should always run whenever the ignition switch is turned to the Run
position. Technician B says that some late-model Toyotas use a returnless fuel injection system
with the pressure regulator located within the fuel tank. Who is correct?
a. Technician A only
b. Technician B only
c. Both technicians
d. Neither technician
Rejoinder: Toyota Computer Controlled System (TCCS), Outputs
12. In the 2004 model year, Toyota vehicles began using noncontact linear Hall effect sensors for
which of the following?
a. Throttle position sensors
b. Accelerator pedal position sensors
c. Vehicle speed sensors
d. Both A and B
Rejoinder: Toyota Computer Controlled System (TCCS), Outputs
13. Technician A says that Toyota’s VVT-i system allows the PCM to advance or retard the
timing of the intake camshaft. Technician B says that if a front or side air bag is deployed on a
newer Toyota, the PCM will de-energize the fuel pump relay. Who is correct?
a. Technician A only
b. Technician B only
