Gauge name
Range
Units
Abbreviation
Volumetric Efficiency %
(MAP vehicles only)
VE
(MAP vehicles only)
0 to 100
%
VE %
Volumetric efficiency is a measure of how fully your vehicle can fill its cylinders with the fuel/air mixture on the intake stroke.
For example, a vehicle with a VE of 50% is able to fill its cylinder with 50% of it potential. UltraGauge uses several engine
sensors to determine the VE dynamically. This Gauge is only shown if the MAP sensor is present.
If Adaptive Volumetric Efficiency has been enabled, this gauge will provide the Volumetric Efficiency percentage in real time.
Adaptive Volumetric Efficiency can be controlled via the menu system by selecting:
MENU
Vehicle Setup ..
VE Enable (MAP only)
MENU
Vehicle Setup ..
VE RPM (MAP only)
To determine if your vehicle uses a MAP sensor, access the menu;
MENU
UltraGauge Setup..
Version.
This will display
MPG sensor:
MAP
,
MAF
or
None
Gauge name
Range
Units
Abbreviation
UG Temperature
0 to 232
º
F UG
º
F
UG Temperature
0 to 111
º
C UG
º
C
UltraGauge
Temperature
Internal temperature of UltraGauge. Avoid possible malfunction due to high dash temperatures on sunny summer
days. By default the high alarm is enabled and set to 145
º
F. UltraGauge will continue to operate even when
extreme high temperature is present. Due to internal heating, it is common for this gauge to report temperatures in
the range of 125 -130
º
F on a bright day, while mounted on the dash in sunlight, when the cabin temperature is
75-80
º
F. If temperatures in excess of 140
º
F are seen, check that the cooling vents are not blocked. If the
temperature rises above 140
º
F, the Backlighting will automatically dim to 65%. The backlighting is the primary
source of internal heat and a temporary reduction to 65% will greatly reduce the temperature. Setting the Max
Backlighting to a value of 80% or less is recommended. Generally the amount of additional light produced when
set above 80% is difficult to perceive. UltraGauge will naturally cool down as the interior of the vehicle is cooled.
Setting the vehicle’s vent controls to defrost will direct cool air to the dash area and more quickly cool
UltraGauge. While UltraGauge is designed to operate under elevated temperatures, some customers have painted
the back half of UltraGauge white to reflect the heat of the sun. This can result in a significant decrease in
temperature when UltraGauge is dash mounted. This is more for piece of mind and is not necessary.
NOTE: When the vehicle is started, after being off for more than 15 minutes, The UltraGauge Temperature will
approximately equal the cabin/dash temperature. The internal backlighting circuits, having been activated by the
vehicle start, will then cause UltraGauge’s internal temperature to slowly increase above cabin temperature.
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Page 30/55 UltraGauge™ EM User Manual www.ultra-gauge.com
