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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Vacuum Switch: Description and Operation
Fig. 5 Spark control computer & vacuum transducer location. 1983-86 4-135 engine:
The
vacuum transducer is located on the computer and it provides the computer with information on engine vacuum,
Fig. 5. It is used to control spark advance and air fuel ratios. And indicates engine load.
