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

HB2 - Check Air Intake System

- Check air intake for leaks, obstructions, and damage.

- Check air filter, air filter box for blockage.

- Check crankcase ventilation system integrity.

- Check engine vacuum integrity.

- Are problems indicated?

YES -- SERVICE as required.

NO -- GO to HB3. HB3 - Check Fuel Trim PID Status