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

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Normalized Pintle Position

After the closed valve pintle position is established, the PCM calculates a normalized pintle position. The normalized position is the difference between the actual pintle position and the closed valve pintle position multiplied by a scaling factor. The PCM uses the normalized pintle position to determine the desired pintle position for maximum EGR performance.