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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Throttle Position Sensor

At idle, TPS output voltage should be approximately 1/2-1 volt. The output voltage should increase gradually as the throttle plate is slowly opened from idle to WOT.

At wide open throttle, TPS output should be approximately 3.5 volts.