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: Locations

The CO Tap is a small pipe attached to the exhaust manifold which provides a place to connect a CO meter during testing. The pipe is about 8 in. long with a blue rubber plug on the end.