Obdaryn

P1326Knock Sensor Detection System: possible connecting-rod bearing wear

  • Hyundai/Kia code · Engine
  • Turns on the check-engine light
  • Can trigger limp mode
How the car detects it
Engines with the Knock Sensor Detection System (KSDS) software listen with the knock sensor for the vibration that early connecting-rod bearing wear makes. When they hear it, the check-engine light flashes and the engine goes into limp mode to protect itself. Stop driving soon and have a dealer check it: Hyundai/Kia cover this under campaigns and extended warranties on many Theta, Nu and Gamma GDI engines. Not every 2010-2016 model has KSDS.
What you may notice
  • Flashing check-engine light
  • Limp mode: engine speed limited to about 2000 rpm
  • Possible knocking noise
Likely causes
  • LikelyConnecting-rod bearing wear
  • RareInterference on the knock sensor wiring (checked first by the dealer)
Sources

Backed by an official manufacturer document.

From Obdaryn's Hyundai/Kia pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.