Hello, I am Danny.
Yes, the code P0335 is for the Crankshaft Position Sensor. The code P0725 is for the Engine Speed Signal. It is not receiving the proper voltage from the ECM (Engine Control Module) to the TCM (Transmission Control Module). Did the repair shop not give any type of guarantee/warranty? You should start by checking the electrical harness at the ECM and TCM. Hope this helps and feel free to ask any other questions if needed. Thanks for using 2CarPros.
Danny-
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Thursday, August 23rd, 2018 AT 6:21 PM