Dodge Repair: 99 3500 Ram 4x4 Diesel looses power, auto zone, speed auto

Question
My Dually will loose power, then all of a sudden regain speed. Auto Zone found 5 error codes: P-234, P-236, P-238, P-380, P-382. My check engine and about 4 other, warning lights stay on. I can't pull my horse trailer over 40 MPH when it does this. I've checked all hoses and cables. What do I need to check now? Thanks, Donny

Answer
the P-0234 TURBO BOOST LIMIT EXCEEDED (OBDII
possible turbo

the other stuff  u should have  a tech look at   possible ECM with all the common issues.
P-0236 MAP SENSOR TOO HIGH TOO LONG
P-0238 MAP SENSOR VOLTAGE TOO HIGH
P-0380 INTAKE AIR HEATER RELAY #1 CONTROL CIRCUIT
P-0382 INTAKE AIR HEATER RELAY #2 CONTROL CIRCUIT