Enhanced and Non Enhanced EVAP systems

by Grant Galoyan
(Los Angeles)

Non-enhanced system is a pre OBD-II system with a limited diagnostic capabilities. It could not check for leaks or perform self-test for proper operation.
Enhanced systems can perform self-tests to check for leaks in addition to proper system operation. This is more important and effective specially that most common EVAP system problem is loose or missing gas cap.

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to UT007: Understanding EVAP Emissions System .

CLASS SCHEDULES

Emission Control 1:

B.A.R. Smog Check

Inspector Level 1

(Inspector "Smog" License):

Engine Fundamentals  

8am - 12:15 pm 

Summer Class

7/5/2022 -8/5/2022

Class # 799065


Emission Control 2:

B.A.R. Smog Check

Inspector Level 2

(Inspector "Smog" License):

Rules and Regulations

8am - 12:15 pm

Summer Classes

7/5/2022 - 8/5/2022

Class # 799067


Engine Performance 1:

 8am - 12: 15 pm

Date: TBD

Class # 799069


Engine Performance 2:

B.A.R. Specified Diagnostic

and Repair Training

(Repair "Smog" License)

Time: TBD 

Date: TBD 

Class # 799071


Emission Control 1

(Inspector "Smog" License):

5:00pm - 8:45 pm

Date: TBD

Class # 799065


Emission Control 2: 

(Inspector "Smog" License):

5:00pm - 8:45 pm

Date: TBD

Class # 799065


Exhaust Emissions (Update Class):

5:30 pm - 8:45 pm 

Tuesday nights: 

Dates: coming soon 

Class # 796070