MBE 900 4000 Troubleshooting

Section 17.1 Description of PID 190 – Engine Speed Outside Normal Operating Range

Section 17.1
Description of PID 190 – Engine Speed Outside Normal Operating Range

PID 190 indicates the PLD-MR control unit has detected engine operating outside of the normal range.‪

The diagnostic condition is typically:‪

  • Engine Speed High (190 00)

A Crankshaft Position sensor (variable reluctance magnetic pickup) is used to monitor engine speed along with crankshaft position. A camshaft position sensor is used to monitor engine speed and camshaft position for functions such as fuel control strategy. See Figure "Location of Camshaft Position Sensor and Crankshaft Position Sensor" .‪

Click to see this graphic in a separate window

 1. Camshaft Position Sensor (magnetic pickup)‪

 2. Crankshaft Position Sensor (magnetic pickup)‪

Figure 1. Location of Camshaft Position Sensor and Crankshaft Position Sensor


MBE 900/4000 Troubleshooting Guide - 6SE422
Generated on 10-13-2008

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