Omni 4 bars map sensor

Omni Power USA 4 Bar MAP (Manifold Absolute Pressure) sensors use state of the art bipolar op amp circuitry with thin film resistor networks built into each micro chip. Pressure changes are calculated on a true linear 0-5 volt scale via a specially designed silicon pressure sensor that also compensates for temperature changes. The unique ability to compensate for temperature changes allows the Omni Power USA 4 Bar MAP sensor to remain a minimum of 99% accurate from 32 degrees F to 180 degrees F through out its range of scale. With the true linear pressure vs. voltage scale there is never a need to re-tune at different altitudes as with other sensors. Competitors sensors on the market don’t have true linear scaling which can cause your engine to go out of tune with elevation changes, often resulting in idle problems, poor drivability, and catastrophic engine damage. Omni Power 4 bar MAP sensors can precisely calculate boost pressure from 1-43+ psi (7 bar 1-80+ psi,) while still allowing smooth stock OEM drivability at any boost level. Conveniently packaged in an OEM dimensional housing for easy install and an OEM look.
Key features:

Cases are designed to withstand in excess of 130 PSI without leaking

-40 to 260 degrees Fahrenheit temperature operating range

Able to respond from 10% of the pressure scale to 90% of the pressure scale in .001 seconds (the fastest response time of any MAP sensor on the market).

Automatic temperature compensation.

True linear scaling for perfect drivability at all boost and vacuum levels.
Compatible with all aftermarket engine management systems.

Minimum of 99% accurate over full scale range under all conditions including temperature, altitude, and humidity changes.

Allows smoother engine operation, higher boost levels, and better drivability than competitors turbo MAP sensors.
Direct plug and play for an easy install and an OEM look. Dimensionally identical to the stock MAP sensor.

Each sensor is hand assembled, pressure, and function checked in the USA for unparalleled quality control prior to shipping.

Applications:
Nissan GT-R 2009-2014

AEM EMS 4bar calibration
go to setup : sensors : map sensors : options
min voltage .08
max voltage 4.88
scalar 3.8
load offset 15.0
filter 10
frequency 0
The car fuel and ignition tables will need to be retuned for the engine to idle as they will still be
based on the previous map sensor even though the map sensor calibration is correct.
Motec
The Motec M4 and M48 will use the one file and the ’hundred series’ (M400, M600 and M800)
will use the other.
OMNI 4 Bar MAP setup for M4 / M48
Setup MAP to -1 in ”sensor setup”
Go to Sensor Cal Tables >> Manifold Pressure
Set ”0” to 0 and hit enter
Set ”10” to 3 and hit enter
Set ”20” to 41 and hit enter
scroll all the way over to 400
Set ”400” to 983 and hit enter
Set ”410” – ”500” to 1024 hitting enter after each
one
All the boxes you hit enter on should have an * next to the number
Now hit F9 and go to ”interpolate Horizontal row” and hit enter
Now hit ”G” and make sure you have a linear interpolation between 10 and 400
Check a few data points, you should
have:
100 239
200 487
300 735
400 983
Calibration
Table kPa
26 Input V
1
0 0.32 0.563 0.926 1.168 1.895 2.621 3.347 4.073 4.799 Voltage
0 30 50 80 100 160 220 280 340 400 KPA
-14.5 -10.1 -7.2 -2.9 0 8.7 17.4 26.1 34.8 43.5 PSI
1bar=100KPA=14.5PSI=1000milibar
3 bar
Scalar: 617
Offset: 11
Voltage to pressure (KPA) conversion
P= pressure in KPA 4 bar = 400 KPA
Voltage out/signal = 5 X (.00318 X P – .00353)
Example: Atmosphere equals 1 bar or 100 KPA = 5 X (.00318 X 100 – .00353) = 1.572 volts @ 1 bar
or 100 KPA
4 bar
Scalar 838
Offset 31
Voltage to pressure (KPA) conversion
P= pressure in KPA 4 bar = 400 KPA
Voltage out/signal = 5 X (.002421 X P – .00842)
Atmosphere equals 1 bar or 100 KPA = 5 X (.002421 X 100 – .00842) = 1.168 volts @ 1 bar or 100
KPA
Crome Custom
Min: 34.7 mbar
Max: 4000 mbar
AEM
MIN=0
MAX=4.8
LOAD OFF SET=0
LOAD SCALAR=4.0
THE 3 AND 7 BAR ARE THE SAME LOAD OFF SET AND MIN JUST USE THE MAX VOLTAGE FROM
THE CONVERSION TABLE AND 3.0 AND 7.0 FOR THE SCALAR
7 bar
Scalar 1582
Offset -351
Voltage to pressure (KPA) conversion
P= pressure in KPA 4 bar = 400 KPA
Voltage out/signal = 5 X (.0012858 X P + .04)
Example: Atmosphere equals 1 bar or 100 KPA = 5 X (.0012858 X 100 + .04) = .843 volts @ 1 bar or
100 KPA
Omnipower Map sensor voltage vs pressure data
Calibration Table
All sensors linear
Volts 3
bar 0.777 1.572 2.367 3.162 3.957 4.752
kPa 3
bar 50 100 150 200 250 300
Volts 4
bar 0.563 1.168 1.774 2.379 2.984 3.589 4.195 4.8
kPa 4
bar 50 100 150 200 250 300 350 400
Volts 7
bar 0.521 0.843 1.164 1.486 1.807 2.129 2.45 2.772 3.093 3.415 3.736 4.057 4.379 4.7003
kPa 7
bar 50 100 150 200 250 300 350 400 450 500 550 600 650 700
FAQ
What calibration do I use if my engine management won’t convert scalar and offset numbers.
On the calibration page there are formulas to convert the pressure to a voltage to make your own table for
each sensor type.
Will the MAP sensors cause idle problems or poor drivability?
No, with proper calibration the engine will run and drive like it has the stock map sensor. Each sensor has
been tested on non-turbo engines with no change in mileage or drivability.