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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Safety Precautions






Safety Precautions

To reduce the risk of personal injury and/or damage to the fuel injection and ignition system, always observe the following:

Do not touch or disconnect the ignition coils with power output stages when the engine is running or turning at starting speed.

Only disconnect and reconnect the wires for the injection and ignition system, including test leads, if the ignition is turned off.

If special testing equipment is required during a road test, note the following:

Test equipment must always be secured to the rear seat and operated from there by a second person.

If test and measuring instruments are operated from the front passenger seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.