Premium Engine Knock Detonation Sensor KS For 1985-2006 Audi and Volkswagen 054905377A 0261231038

•Manufacturer: AIP Electronics•100% New Construction•High Quality OEM Replacement Part•Fit and Quality Guaranteed•Ready for Install Straight out of the boxSymptoms of a bad knock sensor include a sluggish engine poor acceleration and poor fuel economy. Knock sensors rarely fail outright and more often get "soft" over time and cause false signals to be sent to the ECU which thinks the engine is knocking when its really not. Restore engine performance with this brand new OEM replacement quality knock sensor for your Nissan or Infiniti. AIP develops, manufactures and markets a comprehensive line of OEM replacement/high performance products and systems, distributed through a nationwide network of dealerships, online marketplaces, service facilities, and wholesale warehouses.** Emissions Note: For sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part.Fitment1991 AUDI 200 QUATTRO