They was fast , and effective my CPC4 works great, when I first plugged it in the gauges was off the normal settings but i just turned key on off 4 times and they Reset (after 1 on/off Cycle) but I did 3 more times just for good measure and have about 1200 miles on it and havent even thought about it since!!
I still have my OLD CPC4 ($4,500) the one I got when no one repaired in 2021 , it works but sometimes giving code SPN609 fmi12 so I will soon send ECU PRO this one too them too have for other trucks just incase.
5 months ago
The ECU Pro has a
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