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" .
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|