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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Computers and Control Systems: Description and Operation

DME Control Unit Operation:

Digital motor electronics (DME) is used to control engine operation. Fuel is delivered to the via a Bosch L-Jetronic electronic fuel injection system. Using sensor input, it is able to monitor engine speed, load, temperature, and fuel mixture. These inputs are applied to preprogrammed "maps" to determine output characteristics necessary for optimum fuel economy and performance.