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)

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Fuel Shut-Off



Fuel Shut-off






If any of the following criteria are fulfilled, fuel shut-off will take place:
- supply +15 not present.
- fully depressed accelerator pedal during starter motor cranking
- engine speed above 6200 rpm.
- air mass/combustion exceeds a calibrated value, unique for each engine variant.
- immobilizer code faulty.
- major fault in throttle control
- ignition system not supplied with current.
- during engine braking on certain conditions.
- engine torque exceeds a calibrated value during throttle limp-home.