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Service ETC but NO engine codes

mkoski286

mkoski286

New Member
Jul 14, 2025
1
0
Truck Year
2016
Hello,

I have a 2016 ecodiesel ram 1500 and recently it started to have a service ETC message on the dash and be in limp mode but no codes stored in the pcm. It is EGR and DPF deleted and has had no issues for over two years until now. GDP tuned. Tried cleaning and also replacing map sensor, no change. Battery is realtively new and tests fine. Tried unhooking it for an hour, message came back on the dash imediately. Looking for ideas, thanks.
 
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