Deck 16: Asian Computerized Engine Control

Question 1

Which scale on a DVOM should be used to test a mass air flow sensor signal on a Toyota vehicle?

A)DC volts
B)AC volts
C)Hertz
D)Duty cycle

Answer 1

A

Question 2

What is the name of the electronic engine control system as used on a Nissan?

A)ECCS
B)TCCS
C)MECS
D)PGM-FI

Answer 2

A

Question 3

The waste spark ignition system on the newest Toyota vehicles is being discussed. Technician A says the coils are mounted directly on top of the spark plugs. Technician B says the system uses spark plug wires. Who is correct?

A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Answer 3

A

Question 4

Where is the fuel pressure regulator located on a Toyota equipped with a return less fuel system?

A)Under the hood at the outlet of the fuel rail
B)Under the hood at the inlet of the fuel rail
C)In the fuel tank above the fuel pump
D)Above the fuel tank in the fuel line

Question 5

On a Honda VTEC system, which of the following inputs are used by the PCM to determine whether to energize the VTEC oil solenoid?

A)The RPM must be in a specific range
B)The vehicle speed must exceed 19 MPH
C)The coolant temperature must exceed 140 degrees F
D)All of the above are correct

Question 6

The air conditioning cut out feature on a Nissan disengages the air conditioning compressor under all of these conditions EXCEPT:

A)when the throttle is fully open
B)during start up cranking
C)during deceleration
D)at high engine speeds

Question 7

The Toyota air-fuel ratio sensor uses a control reference voltage of ______.

A)0.450 V
B)3.3 V
C)5 V
D)6.1 V

Question 8

Some Nissan systems are equipped with a fuel temperature sensor. What is the purpose of this sensor?

A)It is used by the PCM to regulate fuel pressure
B)It is used by the PCM to determine changes in fuel viscosity
C)It is used by the PCM to determine when to run the fuel system leak detection software
D)Both B and C are correct.

Question 9

What type of signal is produced by a Toyota mass air flow (MAF)sensor?

A)continuous analog voltage signal
B)continuous digital voltage signal
C)fluctuating analog voltage signal
D)fluctuating digital voltage signal

Question 10

How many camshaft (CMP)sensors (also known as TDC sensors)are used on Honda systems?

A)1
B)2
C)3
D)4

Question 11

The Honda i-VTEC is being discussed. Technician A says the system can control variable lift and duration. Technician B says the system can control valve timing and can disable valve operation. Who is correct?

A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Question 12

What is the resistance of a Toyota engine coolant temperature (ECT)sensor at room temperature?

A)200 Ω
B)2000 K Ω
C)2000  Ω
D)200  K Ω

Question 13

The CMP sensor on a Nissan is being discussed. Technician  A says the sensor is a Hall effect type. Technician B says the sensor produces a digital signal. Who is correct?

A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Question 14

What is the resistance specification for a Nissan crankshaft (CKP)sensor at room temperature?

A)470 to 570 K Ω
B)470 to 570 Ω
C)47 to 57 K Ω
D)None of the above

Question 15

Fuel flow and pressure control on a Nissan is being discussed. Technician A says the system uses a fuel pump control module. Technician B says the system uses a fuel tank temperature sensor is used. Who is correct?

A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Question 16

What is the name of the electronic engine control system as used on a Toyota?

A)ECCS
B)TCCS
C)MECS
D)PGM-FI

Question 17

What is the name of the electronic engine control system as used on a Honda?

A)ECCS
B)TCCS
C)MECS
D)PGM-FI

Question 18

Toyota's VVT-i system is being discussed. Technician A says the VVT-i system controls valve overlap. Technician B says the VVT-i timing mechanism allows only four distinct camshafts "settings". Who is correct?

A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Question 19

Oxygen sensors are being discussed. Technician A says the zirconia type sensor changes resistance with the presence of oxygen. Technician B says the titania type sensor changes voltage with the presence of oxygen. Who is correct?

A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Question 20

Which statement is true concerning the Honda linear air-fuel sensor?

A)The sensor uses a 5-volt control reference signal.
B)The sensor can measure air/fuel ratios as lean as 22:1.
C)The sensor is used only on vehicles equipped with a continuously variable transmission.
D)The sensor can have up to 10 wires.