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P2227 Barometric Pressure Circuit Range/Performance
AutoHex Online Help: Hyundai GENESIS COUPE(BK) 2012
Component Location
General Description
ECM has a barometric pressure sensor built-in its inner structure, where it detects the atmospheric pressure at the vehicle's current location. The barometric pressure sensor calculates the density of air(quantity of oxygen) and accurately detects the intake air amount along with intake air sensor and intake air temperature sensor. This does an important role in compensating the amount of fuel when driving in hillsides areas where difference in air density(oxygen) exists, and also in EGR control.
DTC Description
ECM sets DTC P2227 if the ECM detects that operation of barometic pressure sensor is abnormal.
DTC Detectiong Condition
Item | Detecting Condition | Possible Cause |
DTC Strategy | Plausibility check
| BPS |
Enable Conditions | Case1 | engine off time > 10 sec
Vehicle speed < 0.6mph
0.8V < BPS voltage < 4.9V
0.1V < MAP voltsge < 4.85V
0.1V < PUT voltage < 4.7V
engine operating state off
Failure not detected for following DTCs
|
Case2 | Engine operating state out of start
throttle position > -1°TPS
0.35 < Pressure quotient < 1
Failure not detected for following DTCs
|
Threshold Value | Case1 | turbodharger boost pressure-manifold air pressure< 100hPa, barometric pressure-turbocarger boost pressure > 100hPa barometric pressure-manifold air pressure > 100hPa
|
Case2 | barometric pressure-pressure up throttle > 500hPa, pressure up throttle-pressure up throttle(full load) > 0hPa barometric pressure-pressure up throttle during full load > 2716hPa,
|
Diagnostic Time | immediately
|
MIL On Condition | 2 Driving Cycles
|