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

Wide Open Throttle (WOT)

PCM MONITORS:
^ Engine Temperature (ECT)
^ Manifold Vacuum (MAP sensor)
^ Engine RPM (distributor pick-up)
^ Throttle Opening (TPS)
^ Battery Voltage

PCM CONTROLS:
^ De-energizes EGR system, by grounding Electronic EGR Transducer (EET) solenoid.
^ Adjusts injector pulse width, to supply additional fuel.
^ Monitor oxygen sensor and fine tune air/fuel ratio by varying injector pulse width
^ Adjust ignition timing.
^ De-energize A/C Compressor Clutch relay (if selected)