SPN 190 FMI [0, 2, 16] Engine Fault Cause and Fix

SPN 190 has a few scenarios like:

SPN 190 FMI 0 – Engine Speed Data Valid But Above Normal Operational Range – Most Severe Level

SPN 190 FMI 2 – Engine Speed Data Erratic, Intermittent Or Incorrect

SPN 190 FMI 16 – Engine Speed Data Erratic, Intermittent Or Incorrect

Fix
Inspect turbo for leaks, drain oil and remove pan and inspect engine block for damage. Test the sensor.