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

Poor Driveability


1. Faulty ignition system.
2. Loose air flow sensor connector.
3. Shorted throttle position sensor.
4. Open oxygen sensor.
5. Defective pressure sensor.
6. EGR control solenoid valve sticking.
7. Closed EGR control solenoid valve.
8. Open or shorted coolant temperature sensor.
9. Defective ECU.
10. Defective pressure exchange solenoid valve, if equipped.