Operation CHARM: Car repair manuals for everyone.
Home >> Isuzu >> 1999 >> Hombre S Regular Cab 2WD L4-2.2L CPC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Fuel Metering System >> Fuel Metering System Modes >> Fuel Cutoff Mode
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 Cutoff Mode

To prevent possible engine damage from over-revving, the PCM cuts OFF fuel from the injectors at a calibrated engine speed or vehicle speed. On vehicles equipped with an automatic transmission, fuel will be shut OFF if the engine exceeds 4000 RPM in PARK or NEUTRAL. The PCM also cuts OFF fuel to the fuel injectors at vehicle speeds above 108 mph in order to prevent tire damage.
pro multis · About Operation CHARM