I’m proud to be the original owner of a 2003 Land Rover Discovery II. Despite being over two decades old, the vehicle continues to attract compliments for its timeless design—often compared favorably to newer models. Located in Southern California, I’ve maintained my Discovery with care, keeping the mileage impressively low. Recently, the check engine light appeared, showing a P0301 code. I’m now looking to learn more and address the issue myself using available DIY resources.
