code 95 help?

Most common is the sensor is failing, Cat had problems with this pressure sensor. I have replaced many. If you have a BXS or early MXS you will have to update the connector at the sensor also.
Table 1Engine Service Replacement for Pressure Sensor (VVA) C11 (S/N: KCA1-06123)
C13 (S/N: KCB1-39998) 224-4535 Pressure Sensor Group C11 (S/N: KCA06124-UP)
C13 (S/N: KCB39999-UP) 284-2728 Pressure Sensor Group C15 (S/N: BXS1-UP)
C15 (S/N: MXS1-25316) 284-2728 Pressure Sensor Group
249-5293 Sensor Harness Assembly [SIZE=-1](1)[/SIZE] C15 (S/N: MXS25317-UP) 284-2728 Pressure Sensor Group