SUPPORT 3816046 - Caterpillar

The Electronic Control Module (ECM) records one of the following conditions. The Unfiltered Fuel Pressure Sensor never calibrated. The ECM reads unfiltered fuel pressure less than 35 kPa (5 psi). The ECM reads filtered fuel pressure more than 130 kPa (19 psi). The unfiltered fuel pressure is more than 27 kPa (4 psi) from the atmospheric pressure. The unfiltered fuel pressure changes more than 25 kPa (3.6 psi) during a calibration attempt. The diagnostic codes 289-03 and 289-04 are active. The diagnostic codes 274-03 and 274-04 are active.System Response:The diagnostic codes are not logged in memory. The ECM will use the data from the previous calibration.Test Step 1. Perform the following diagnostic procedure: "Analog Sensor - Calibrate"Results:
OK - STOP
REPAIRED, OK - STOP