PEC017
5/3/2018
Page
12
of
105
5.0
General Settings
Overview
Basic engine parameters
Standard Feature
High Exhaust System Temperature (HEST) Warning
Fuel Density
The High Exhaust System Temperature (HEST) warning indicator allows the engine
to inform the driver when the exhaust temperature exceeds
HEST Warning
Temperature Activation Limit
and the vehicle speed is less than
Minimum Speed for
High Exhaust Temp Warning (
).
The warning indicator will turn off once the
exhaust temperature falls below the
HEST Warning Temperature Deactivation Limit.
Fuel Density
allows the customer to reprogram the engine controller with a
fuel density that more precisely represents the local fuel variation used in their
vehicles, which will improve the accuracy of the
controller’s calculated fuel economy.
Programmable Parameters
HEST Warning
N065
Page
Min
Default
Max
Units
Minimum Speed for High Exhaust
Temp Warning
5
5
50
MPH
Fuel Density
N051
Page
Min
Default
Max
Units
780
855
950
g/L
