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

A4 - Check Fuel Pressure

WARNING: If fuel starts leaking, turn key off immediately. No smoking.

- Key Off.

- Install fuel pressure gauge.

- Note initial pressure reading.

- Observe pressure gauge as fuel system is pressurized.

- Turn key on for one second, then turn key off. Wait 10 seconds. Repeat five times.

- Does the fuel pressure increase?

YES -- Go to A5. A5 - Idle Air Control Check

NO -- Go to X150. X150 - No Fuel Pressure: Check If Fuel Pump Runs