2012 freightliner cummins isx egr remover

2012 freightliner cummins isx egr remover code#

Verify the electronic control module (ECM) calibration is correct.

The reading of the EGR differential pressure must be within the calibratible limits.

The keyswitch transitions from ON to OFF.

The intake manifold air temperature is -17вЊ or higher.

The engine coolant temperature is 67вЊ or higher.

The ECM illuminates the amber CHECK ENGINE light at key on when the diagnostic runs and fails.

2012 freightliner cummins isx egr remover code#

The fault code is set active when the EGR differential pressure sensor is reading higher or lower than a calibratible value when the keyswitch is turned off.ДЄction Taken When the Fault Code is Active: Intake manifold air temperature is -17вЊ or higher.Engine coolant temperature is 67вЊ or higher.This diagnostic runs at key-off when the following conditions are met: The sensor is located near the air intake. This pressure drop is used to calculate the amount of EGR flow into the intake manifold. The EGR differential pressure sensor measures the exhaust gas pressure drop across the EGR differential pressure orifice. This sensor signal voltage changes based on the differential pressure in the EGR crossover tube.

The EGR differential pressure sensor provides a signal to the ECM on the EGR differential pressure sensor signal circuit. The ECM also provides a ground on the sensor return circuit. The ECM provides a 5 volt supply to the EGR differential pressure sensor on the sensor supply circuit. This information is used to control the EGR valve for correct emission levels. The electronic control module (ECM) uses this pressure to determine how much exhaust gas is flowing in the EGR connection tube to the intake manifold. The sensor outputs a voltage which represents the pressure difference between the two ports located across an orifice in the EGR tube. The exhaust gas recirculation (EGR) differential pressure sensor has two ports that sense exhaust pressure. An error in the EGR delta pressure signal was detected at initial key-on or the sensor failed the autozero test.Д®FFECT:В EGR valve actuation will be disabled.

REASON: Exhaust Gas Recirculation Valve Delta Pressure - Data Erratic, Intermittent, or Incorrect. ISB, ISC, and ISL with CM2150 - Differential Pressure Sensor Circuit Exhaust Gas Recirculation Valve Delta Pressure - Data Erratic, Intermittent, or Incorrect