Operation CHARM: Car repair manuals for everyone.
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






FIRING ORDER: 1-3-4-2
IDLE SPEED: [1] 850 ± 50 RPM
IGNITION TIMING: [2] 2 ± 1° BTDC
VALVE CLEARANCE: Not Adjustable
IDLE MIXTURE: Not Adjustable

[1] With test connector grounded, transmission in neutral (MTX) or park (ATX)
[2] Vacuum line disconnected and plugged