CONVERTER AR. 3079981 - Caterpillar

If the 5 Volt connection to the sensor has an open circuit, this fault will result in a logged code.The Electronic Control Module (ECM) detects all of the following conditions:
No other CID 0262 or CID 0102 codes are active.
The engine speed is greater than 1000 rpm.
The pressure sensor signal from the intake manifold is within the expected range for this failure mode.
The pressure sensor signal from the intake manifold remains abnormally constant because the variations in the sensor signal are too small.
All of the above conditions occur simultaneously for a period of 30 seconds.System Response:The ECM will log the diagnostic code. The diagnostic code may be viewed on the electronic service tool. The ECM will flag the intake manifold pressure as data that is abnormal or incorrect. The intake manifold pressure is set to a default value.Test Step 1. Perform the following diagnostic procedure: "Engine Pressure Sensor Open or Short Circuit - Test"Results:
OK - STOP