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

BPW - Base Pulse Width

Displays actual injector pulse time as calculated by the ECM in milliseconds (m/sec). Normal readings should be 1-4 m/sec and varying. Lower number indicates reduced fuel delivery, while higher number indicates increased fuel delivery. A fixed reading indicates open loop operation or a system malfunction.