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)

Or, hide this message: temporarily or permanently

Idle Speed: Adjustments


DTC P0507 - Idle Speed High

The electronic throttle control body controls the idle speed by allowing a controlled amount of air to enter the intake manifold. Actual idle sped is continuously compared to commanded idle speed. This code will set if the actual speed is at least 200 rpm greater than the commanded value or if the vehicle has experienced fuel cut-off more than three times during one idle period.