To fix the EPC light on a VW Jetta, you can try the following solutions:

1. Replace your engine sensor or reset it to see if this turns off the EPC light.
2. Start the car normally, then start the car for the second time and push the gas pedal. In some cases, this works.
3. Plug in an OBD-II scanner into your car’s diagnostic port and turn on the ignition. Look for the code and disconnect batteries.
4. Remove screws, tighten screws, use scanner, check, and start the engine.

For more detailed instructions, you can refer to this [source](https://cars-care.net/how-to-fix-epc-light-on-vw-jetta/).