EDGE-CUTTING 4434471 - Caterpillar

Which Generate This Code:The Electronic Control Module (ECM) detects the following conditions:
The ECM has been powered for two seconds.
The signal voltage from the intake manifold pressure sensor is above 4.95 Volts DC for at least two seconds.
This code can be caused by an open circuit or a short to another power source.System Response:If equipped, the warning light will be on. The diagnostic code will be logged. The data for the intake manifold pressure will be set to a maximum valid pressure for two seconds. The ECM will then flag the intake manifold pressure as being invalid. A default value is then used for the intake manifold pressure.For engines with an electronically controlled wastegate, the current for the wastegate solenoid will be set to a default value while this code is active. This will cause the engine to have poor acceleration but the default setting will prevent any overpressure in the intake manifold which could be caused by an overspeed of the turbocharger.This diagnostic code will detect excessively high voltage from the intake manifold pressure sensor.Test Step 1. Perform the following diagnostic procedure: Engine Pressure Sensor Open or Short Circuit - TestResults:
OK - STOP