CDX-ASE 73/7: Comprehensive Engine Performance Review
In vehicles with cracks and leaks that result in an EVAP system failure, the use of a(n) _______ may be
necessary to find the leaks in the system. - correct answer ✔✔Smoke Machine
In case of a leak in the EVAP system, _______ can be released into the atmosphere. - correct answer
✔✔Hydrocarbons
__________ charcoal means the charcoal is porous and has a large surface area that can absorb and
store large quantities of fuel vapor. - correct answer ✔✔Activated
A vehicle with an EVAP-related concern is diagnosed. Technician A says that a scan tool can be used to
pull any diagnostic codes. Technician B says that if there are no diagnostic codes, the scan tool can be
used to view the live sensor and actuator data. Who is correct? - correct answer ✔✔Both
Technician A says that the purge valve is part of the evaporative emissions system. Technician B says that
OBDII systems must illuminate the MIL when the emissions exceed 1.5 times the FTP. Who is correct? -
correct answer ✔✔Both
In vehicles with cracks and leaks that result in an EVAP system failure, the use of a(n) _______ may be
necessary to find the leaks in the system. - correct answer ✔✔Smoke Machine
In case of a leak in the EVAP system, _______ can be released into the atmosphere. - correct answer
✔✔Hydrocarbons
__________ charcoal means the charcoal is porous and has a large surface area that can absorb and
store large quantities of fuel vapor. - correct answer ✔✔Activated
A vehicle with an EVAP-related concern is diagnosed. Technician A says that a scan tool can be used to
pull any diagnostic codes. Technician B says that if there are no diagnostic codes, the scan tool can be
used to view the live sensor and actuator data. Who is correct? - correct answer ✔✔Both
Technician A says that the purge valve is part of the evaporative emissions system. Technician B says that
OBDII systems must illuminate the MIL when the emissions exceed 1.5 times the FTP. Who is correct? -
correct answer ✔✔Both
