Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Emission Control Systems: Description and Operation

In order to meet emission requirements, these vehicles are equipped with various emission control devices. These devices include a catalytic converter, a PCV system, a deceleration dashpot, an electronically controlled fuel system, and an evaporative loss control system complete with a storage canister.
The emission control devices work together to reduce the harmful pollutants NOx, HC and CO.