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I have 2013 2500 Cummins. I recently put a Rev Max valve body and solenoid pack from revmax and deep pan. I re- tune on the truck. I keep getting check engine light with codes p0934 and p0935. Truck doesn’t go into limp mode and drives perfect. I also had replaced the pressure sensor switch on the tranny. The check engine light only comes on at cold starts. Anyone have any suggestions on this problem.
 

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I’m experiencing the same thing, mine does it once I start getting the engine load and throttle position up. I’m thinking because I ran 225psi maybe a damaged the pr valve in pump. I got a next gen valve body and new solenoid, and line pressure sensor. Don’t know what else it could be
 
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