29 March, 2025CAT 3126B Fault Code: 102-3 PID: Flash Code 25 SPN: 102 FMI: 3 Boost Pressure Sensor Open Cicuit Vehicle speed is greater than 127 mph (204 km/h) for at least two seconds. 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.