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
If it fails: lemon-manuals.org.ua

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Without Speed Density



This display indicates air flow in grams per second (gm/sec). Readings should be the same as for the Mass Air Flow (MAF) sensor position (4-7 gm/sec) if no malfunction exists in the MAF circuit. If trouble code 33 or 34 is set, the reading will remain fixed at the value that the failure has detected.