Operation CHARM
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Isuzu
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1998
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Trooper LS V6-3.5L
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Description and Operation
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Fuel Metering
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Engine Speed/vehicle Speed/Fuel Disable Mode
Engine Speed/vehicle Speed/Fuel Disable Mode
The
PCM
monitors engine speed. It turns off the fuel injectors when the engine speed increase above 6400 RPM. The fuel injectors are turned back on when engine speed decreases below 6150 RPM.