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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Full Throttle Enrichment

Full throttle enrichment, checking




- switch OFF ignition
- connect VAG 1367 engine tester using VAG 1367/8 inductive pickup
- start engine and let idle




operate full throttle switch by hand (arrow)
- engine speed must increase and decrease (hunts as deceleration fuel shut off kicks in)

If NO
- check idle and full throttle switch adjustment, Testing and Inspection