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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Engine System Identification


MODEL 911 Turbo:

ENGINE DESIGNATION [1] M930/69
DISPLACEMENT 3.3L (3299cc or 201.4 cu.in.)
CYLINDERS Flat 6
FUEL CONTROL SYSTEM [2] Bosch K-Jetronic
IGNITION SYSTEM [3] Bosch EZ-69
COMPUTER SYSTEM Digital Motor Electronics (DME)



[1]= for engine code I.D. see "V.I.N. AND ENGINE CODE IDENTIFICATION" .
[2]= with oxygen sensor control (Lambda control)
[3]= ignition system is electronically controlled by the Digital Motor Electronics (DME)