PEC 013
Page
13
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12/20/13
6.0
Idle Settings
6.1.
Engine Idle Speed
Overview
“Engine idle speed (N052)” defines the minimum engine operating speed. The
engine idle speed is defaulted to 650 RPM from the factory. The engine idle speed
is adjustable to a maximum speed of 700 RPM.
Programmable Parameters
Parameter Name
Number
Min/Max/Default/Units
Engine idle speed
N052
MIN = 650 (RPM)
MAX = 700 (RPM)
DEFAULT = 650 (RPM)
6.2.
Engine Idle Shutdown Timer (EIST)
Overview
The Engine Idle Shutdown Timer (EIST) is a valuable tool for fleets to restrict idle
time and improve fuel economy. The EIST can be limited to a predetermined interval
and may be overruled during extreme weather conditions. The EIST is
programmable to respond to engine coolant temperatures which allows for longer
uninterrupted warm-up time intervals. The EIST can be programmed to have more
than one time interval based on whether the parking brake is set or not set. The
engine load can be used to reset the EIST. While in power take-off (PTO) mode, the
EIST can be turned ON or OFF with a specific time interval while in PTO Mode. The
EIST is configured at the initial sale of the vehicle and some programmable
parameters are locked or tamper resistance until the expiration mileage is reached.
Standard Feature
EIST
EIST initiates when engine speed is at idle, vehicle speed is at 0 mph, and the
accelerator pedal is motionless or not depressed. The interval of time until the
engine shuts down is programmable; there are two programmable settings for this.
One is with the parking brake ON and the other is with parking brake OFF. A
warning message in the truck’s driver display will indicate that shutdown is
imminent, with the customer able to program when the warning should first notify the
customer and countdown to shutdown of the engine. Within the standard feature
there are a number of programmable features:
Coolant, Oil, and Fuel Temperature Overrule
Programmable resets
