TEXAS VEHICLE EMISSIONS INSPECTOR LICENSE
EXAM NEWEST 2026/ 2027 TEST BANK / VEHICLE
EMISSIONS LICENSE EXAM PREP WITH COMPLETE
300 REAL EXAM QUESTIONS AND CORRECT
VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
A gasoline vehicle presents with the MIL illuminated before testing.
During the OBD-II check, the analyzer reports MIL Command Status:
ON and a stored P0301. What should the inspector record?
A. Pass because the code identifies only one cylinder
B. Fail the OBD-II inspection
C. Pass if all non-continuous monitors are ready
D. Retest after allowing the engine to reach operating temperature -
Correct Answer - B
A commanded-ON MIL with an applicable stored emissions-related
DTC results in an OBD-II inspection failure.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
pg. 1
,The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
pg. 2
,A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
pg. 3
, The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
A vehicle's emissions system has been modified so an original
component no longer performs its intended emissions function. The
OBD system shows Ready. What is the proper finding?
A. Pass
B. Reject
C. Retest
D. Waive - Correct Answer - B
Texas prohibits alterations that make an original emissions system
ineffective.
A 2026 inspection is performed on a gasoline vehicle that is 18 years old
and registered in an affected emissions county. Which test applies?
A. OBD-II
B. Diesel test
C. Safety only
D. No test - Correct Answer - A
Gasoline vehicles 2 through 24 model years old in affected Texas
counties receive the OBD-II emissions test.
A vehicle has a disconnected PCV hose. No MIL is illuminated. Which
component is directly involved?
A. EVAP
B. PCV
pg. 4
EXAM NEWEST 2026/ 2027 TEST BANK / VEHICLE
EMISSIONS LICENSE EXAM PREP WITH COMPLETE
300 REAL EXAM QUESTIONS AND CORRECT
VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
A gasoline vehicle presents with the MIL illuminated before testing.
During the OBD-II check, the analyzer reports MIL Command Status:
ON and a stored P0301. What should the inspector record?
A. Pass because the code identifies only one cylinder
B. Fail the OBD-II inspection
C. Pass if all non-continuous monitors are ready
D. Retest after allowing the engine to reach operating temperature -
Correct Answer - B
A commanded-ON MIL with an applicable stored emissions-related
DTC results in an OBD-II inspection failure.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
pg. 1
,The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
pg. 2
,A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
During the bulb check, the MIL does not illuminate when the ignition is
switched ON, although it goes off after the engine starts. What should
the inspector do?
A. Pass because the MIL is off with the engine running
B. Continue only if no DTCs are stored
C. Fail the MIL bulb-check portion
D. Ask the owner to demonstrate that the bulb worked previously -
Correct Answer - C
pg. 3
, The MIL should illuminate during the key-on/bulb check. Failure to
illuminate indicates a problem with the required warning indication.
A vehicle's emissions system has been modified so an original
component no longer performs its intended emissions function. The
OBD system shows Ready. What is the proper finding?
A. Pass
B. Reject
C. Retest
D. Waive - Correct Answer - B
Texas prohibits alterations that make an original emissions system
ineffective.
A 2026 inspection is performed on a gasoline vehicle that is 18 years old
and registered in an affected emissions county. Which test applies?
A. OBD-II
B. Diesel test
C. Safety only
D. No test - Correct Answer - A
Gasoline vehicles 2 through 24 model years old in affected Texas
counties receive the OBD-II emissions test.
A vehicle has a disconnected PCV hose. No MIL is illuminated. Which
component is directly involved?
A. EVAP
B. PCV
pg. 4
