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

Comparing PCM Data

Comparing PCM Data
After the PCM values have been acquired it is necessary to determine the fault area. Typically, it will require the comparison of the actual values from the vehicle to the typical values.
The charts apply to different vehicle applications (i.e. model, engine, transmission, etc.)