Set up
2005 5.3 ls
DBW
Sm465
Np208
VHX DD gauge cluster

My issue is Im not getting the correct speed reading to my ecm its double of what Im seeing on my phones gps. Ive tried 3 different types of pulse generators and the SEN-01-128 has been the only one thats showed me any reading.

The np208 has a 15 tooth drive gear and a 40 tooth driven gear Im running a 3.73 gear with a 35 tire. Im assuming my issue has something to do with my speedo settings under calibration.

-Hardware
VSS P/Rev-Trans is set to 40.0000
Gear ratio and tire size is at 1.5770325
Final drive is at 3.73

-Sensor calibration
VSS per mile is at 62.958

-Pcm output calibration
Pulse per mile is at 4K
Pulse per mile/ABS is at 128k

Thanks