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Engine Crankshaft Speed/Position – Data Valid but Above Normal Operational Range – Moderately Severe Level
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 1992 PID: SPN: 190 FMI: 0/16 LAMP: Red SRT: |
Engine Crankshaft Speed/Position – Data Valid but Above Normal Operational Range – Moderately Severe Level. Engine crankshaft speed/position SIGNAL indicates engine speed above engine protection limit. |
Engine shutdown. |
 Engine Crankshaft Speed/Position Sensor Circuit
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Circuit Description
The engine crankshaft speed/position sensor and the engine camshaft speed/position sensor provide engine speed and position information to the ECM through the engine harness.
Component Location
The engine crankshaft speed/position sensor is located on the ECM side of the engine, behind the oil filters. The engine camshaft speed/position sensor is located above the fuel pump, in back of the gear housing. Refer to Procedure 100-002 (Engine Diagrams) in Section E for a detailed component location view.
Shop Talk
This fault code is only applicable to engines powering generator sets.
Possible causes of this fault code include:
- External fuel sources drawn into the intake air passage
- Reverse powering (motoring) of the engine
- Tampering of the engine crankshaft speed/position and engine camshaft speed/position sensors.
Inspect the intake manifold for sources of flammable vapors. Check the turbocharger seals to verify that there are no oil leaks. Inspect the engine crankshaft speed/position and engine camshaft speed/position sensors for damage or tampering.
Refer to Troubleshooting Fault Code t05-1992
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