02 April, 2025CAT 3126E Fault Code: 190-11 PID: Flash Code 34 SPN: FMI: No Pattern on Engine Speed/Timing Sensor #1 The ECM has been replaced and the Engine/Speed Timing Sensors have not been calibrated. Share on Facebook Opens in a new window. Tweet on Twitter Opens in a new window. Pin on Pinterest Opens in a new window. Back to blog Leave a comment Name * Email * Comment * Please note, comments need to be approved before they are published.