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

Service Tips

Service Tip:





- If the mass air flow sensor or circuit has an open or short, Diagnostic Trouble Code No. 129, 157, 158 or 159 is output.
- A malfunction in the mass air flow sensor circuit may cause lack of power, poor acceleration, hesitate at drive-away or vehicle shake on deceleration.