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

Misfiring In All Load Ranges

1. Check charging system, fuel pump pressure and output.
2. Check [1][2]engine temperature sensor, airflow sensor and injector operation.
3. Check compression pressure, then retest with new ECU.