Need help after programming new ecm
07-12-2022, (Subject: Need help after programming new ecm ) 
Post: #1
Need help after programming new ecm
I put a new ecm in my peterbilt with a cm2250. Made backup of old file with Calterm, put in new ecm but my speedometer is incorrect. Shows me going 15mph at 60. Can anyone guide me on how to fix this with insight or Calterm? Thank you
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Need help after programming new ecm - suined - 07-12-2022



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