P0340 Fault on 2002 Jeep 2.7L Laredo: Limp Mode After Cold Starts Below 8°C

Hi everyone, I'm experiencing a recurring issue with my 2002 Jeep 2.7L Laredo (WG model). After starting the vehicle in cold mornings—below 8°C—the car enters limp mode after approximately 10 to 20 minutes of operation. An OBD2 scan confirms fault code P0340, indicating a crankshaft position sensor issue. I've already replaced the sensor and inspected all wiring connections; no loose cables or visible damage were found. The vehicle runs perfectly during initial morning driving until it reaches a junction or slows down, at which point limp mode activates. This problem has persisted for about 7 months despite thorough checks. I'm wondering if this could be related to temperature sensitivity of the sensor or wiring integrity under cold conditions. Any insights or known fixes for this specific model and engine configuration would be greatly appreciated.