What will fail emissions test?

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Tags

1. #inspection
2. #oxygen
3. #these
4. #might
5. #sensor
6. #include
7. #mixture
8. #tests
9. #vehicle
10. #common
11. #malfunctioning
12. #faulty
13. #causes
14. #emission
15. #emissions
16. #should
17. #defects
18. #system
19. #properly
20. #failed
21. #injectors
22. #before
23. #control
24. #components
25. #evaporative