Chevrolet Tahoe enters safe mode after rough running, possible knock sensor issues PO 0161 and 0327 on Chevrolet Tahoe

Some Chevrolet Tahoe owners report experiencing issues related to the knock sensor, particularly when the vehicle enters safe mode after rough running. Error codes PO0161 and P0327 are often associated with these knock sensor problems, which are crucial for detecting engine knocking and adjusting timing to prevent damage. Symptoms of a faulty knock sensor can vary by engine and model year, but a malfunctioning sensor may lead to decreased engine performance and increased fuel consumption. Specifically, the P0327 code indicates insufficient voltage from the knock sensor on Bank 1, which can further impact engine performance. If not addressed promptly, these issues could result in potential engine damage. Therefore, it is advisable for owners experiencing these symptoms to have their knock sensor checked and potentially replaced to maintain the vehicle's performance.