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
Fuel Pump Control System
ECM controls ON/OFF operation of the
fuel pump by turning it ON via the
fuel pump relay under any of the following conditions.
-
For 2 seconds after
ignition switch ON.
-
While cranking engine (while engine start signal is inputted to ECM).
-
While
camshaft position sensor (CMP sensor) signal is inputted to ECM.