Engine Performance 2 Final Exam
Actual Questions and Answers 2026
Excessive CO emissions are caused by:
A. fouled spark plugs.
B. rich air/fuel mixtures.
C. high combustion chamber temperatures.
D. carbon build-up in the combustion chambers.
correct answer : B
A vehicle with a DIS ignition has a misfire on cylinders 2 and 5. The
misfire remains on cylinders 2 and 5 when the 2/5 coil is swapped
with the 6/3 coil. Which of these could be the cause?
A. The fuel pressure is low.
B. The head gasket has failed.
C. The 6/3 coil is faulty.
D. The ignition module is faulty.
correct answer : D
During an engine compression test, the technician observes a low
pressure reading on cylinder #1. All other cylinders are normal. This
could be caused by:
A. A burned exhaust valve.
B. A worn camshaft exhaust lobe.
,Engine Performance 2 Final Exam
Actual Questions and Answers 2026
C. Incorrect valve timing.
D. A worn valve stem seal.
correct answer : A
A constant spark knock is heard while the vehicle is at cruising
speed. Technician A says that clogged EGR passages could be the
cause. Technician B says that a stuck-open cooling system
thermostat could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
correct answer : A
An engine cranks but will not start. While cranking there is no
spark, but the fuel pump is running and the injectors make an
audible clicking sound. This could be caused by a failed:
A. Ignition module.
B. Crank sensor.
C. Oxygen sensor.
, Engine Performance 2 Final Exam
Actual Questions and Answers 2026
D. Throttle position sensor.
correct answer : A
Ignition "dwell" refers to the:
A. Time that current flows in the primary coil.
B. Total current value in the primary coil.
C. Peak primary voltage.
D. Secondary firing voltage level.
correct answer : A
The following question contains the word EXCEPT. Read the
question carefully and look for the choice that could NOT cause the
described situation. All of the following procedures can be used to
relieve fuel pressure EXCEPT to:
A. Disconnect the ignition module and crank the engine for 3
seconds.
B. Disconnect the fuel pump and crank the engine for 3 seconds.
C. Remove the fuel pump fuse and crank the engine for 3 seconds.
D. Remove the fuel pump relay and crank the engine for 3 seconds.
correct answer : A
Actual Questions and Answers 2026
Excessive CO emissions are caused by:
A. fouled spark plugs.
B. rich air/fuel mixtures.
C. high combustion chamber temperatures.
D. carbon build-up in the combustion chambers.
correct answer : B
A vehicle with a DIS ignition has a misfire on cylinders 2 and 5. The
misfire remains on cylinders 2 and 5 when the 2/5 coil is swapped
with the 6/3 coil. Which of these could be the cause?
A. The fuel pressure is low.
B. The head gasket has failed.
C. The 6/3 coil is faulty.
D. The ignition module is faulty.
correct answer : D
During an engine compression test, the technician observes a low
pressure reading on cylinder #1. All other cylinders are normal. This
could be caused by:
A. A burned exhaust valve.
B. A worn camshaft exhaust lobe.
,Engine Performance 2 Final Exam
Actual Questions and Answers 2026
C. Incorrect valve timing.
D. A worn valve stem seal.
correct answer : A
A constant spark knock is heard while the vehicle is at cruising
speed. Technician A says that clogged EGR passages could be the
cause. Technician B says that a stuck-open cooling system
thermostat could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
correct answer : A
An engine cranks but will not start. While cranking there is no
spark, but the fuel pump is running and the injectors make an
audible clicking sound. This could be caused by a failed:
A. Ignition module.
B. Crank sensor.
C. Oxygen sensor.
, Engine Performance 2 Final Exam
Actual Questions and Answers 2026
D. Throttle position sensor.
correct answer : A
Ignition "dwell" refers to the:
A. Time that current flows in the primary coil.
B. Total current value in the primary coil.
C. Peak primary voltage.
D. Secondary firing voltage level.
correct answer : A
The following question contains the word EXCEPT. Read the
question carefully and look for the choice that could NOT cause the
described situation. All of the following procedures can be used to
relieve fuel pressure EXCEPT to:
A. Disconnect the ignition module and crank the engine for 3
seconds.
B. Disconnect the fuel pump and crank the engine for 3 seconds.
C. Remove the fuel pump fuse and crank the engine for 3 seconds.
D. Remove the fuel pump relay and crank the engine for 3 seconds.
correct answer : A
