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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Verification Tests

TEST VER-1 VERIFICATION TEST

- Reconnect and reassemble all components. NOTE: MMC vehicles use an air flow sensor. This makes it very important that all air intake hoses are in place and leak free.

- Start engine and let idle for one minute. Rev engine to 3000 RPM and let idle.

- To reset code 11 (Oxygen Sensor), or code 43 (EGR Temperature Sensor), the vehicle must be driven. Test drive the vehicle if any of these faults were previously stored.

- Read fault codes. If any codes are present, return to test DR-1A. Test DR-1A - Checking Fault Codes

- If no faults are present, but vehicle driveability is poor, perform test DR-14A, No Fault Code testing. Test DR-14A - Checking Switches - No Fault Code