Hyundai Santa Fe limp mode issue recurring despite replacement of knock sensor and harness on Hyundai Santa Fe

Some Hyundai Santa Fe owners report experiencing recurring limp mode issues even after replacing the knock sensor and harness. These owners have found that software updates may be necessary to correct erroneous signals from the knock sensors, potentially resolving the limp mode problem. Additionally, some users indicate that a failing Throttle Position Sensor (TPS) or Accelerator Pedal Position (APP) Sensor could contribute to the vehicle entering limp mode. Others have mentioned that upgrading the wiring harness can help prevent electrical interference that triggers the knock sensor. Seeking further diagnostics and tests from the dealership has also been recommended to accurately identify the cause of the limp mode issue. Furthermore, staying informed about any recalls or updates related to the knock sensor and associated components is essential for ensuring the vehicle operates properly and avoids unexpected limp mode occurrences.