{"product_id":"2-pin-1-5mm-knock-sensor-connector-oem-34752-0204-buick-lacrosse-gl8-lzc-firstland","title":"2-Pin 1.5mm Knock Sensor Connector OEM 34752-0204 \/ 347520204 – Buick Lacrosse \/ GL8 \/ LZC \/ FirstLand","description":"\u003ch2\u003e2-Pin 1.5mm Knock Sensor Connector – OEM 34752-0204 \/ 347520204 – Buick Lacrosse \/ GL8 \/ LZC \/ FirstLand\u003c\/h2\u003e\n\n\u003cp\u003eDirect OEM-specification replacement for the 2-pin 1.5mm waterproof connector used on engine knock sensors across Buick and SAIC-GM platforms. OEM cross-reference: \u003cstrong\u003e34752-0204\u003c\/strong\u003e (also written as \u003cstrong\u003e347520204\u003c\/strong\u003e). A corroded or damaged knock sensor connector is a leading cause of P0325 and P0327 fault codes — the ECU loses knock feedback and defaults to retarded ignition timing, causing noticeable power loss and increased fuel consumption.\u003c\/p\u003e\n\n\u003ch2\u003eOEM Part Number Cross-Reference\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOEM Number\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e34752-0204\u003c\/td\u003e\n\u003ctd\u003eKnock sensor harness connector – Buick \/ SAIC-GM primary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e347520204\u003c\/td\u003e\n\u003ctd\u003eAlternate format (same part, no hyphen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePin Assignment – 2-Pin Knock Sensor Connector\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eTypical Wire Color\u003c\/th\u003e\n\u003cth\u003eFailure Symptom if Open\/Corroded\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eKnock sensor signal (piezoelectric output)\u003c\/td\u003e\n\u003ctd\u003ePink\/Black\u003c\/td\u003e\n\u003ctd\u003eP0325 – Knock Sensor 1 Circuit Malfunction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eKnock sensor ground \/ shield\u003c\/td\u003e\n\u003ctd\u003eBlack\/White\u003c\/td\u003e\n\u003ctd\u003eP0327 – Knock Sensor 1 Circuit Low Input; ignition timing retard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Count\u003c\/td\u003e\n\u003ctd\u003e2-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Pitch\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Numbers\u003c\/td\u003e\n\u003ctd\u003e34752-0204 \/ 347520204\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003ePA66 nylon, waterproof sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealing\u003c\/td\u003e\n\u003ctd\u003eIndividual wire seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eEngine knock sensor harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBuick (SAIC-GM), Chevrolet (select models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFault Codes This Connector Fixes\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCode\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0325\u003c\/td\u003e\n\u003ctd\u003eKnock Sensor 1 Circuit Malfunction (Bank 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0327\u003c\/td\u003e\n\u003ctd\u003eKnock Sensor 1 Circuit Low Input (Bank 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0328\u003c\/td\u003e\n\u003ctd\u003eKnock Sensor 1 Circuit High Input (Bank 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eBuick Lacrosse (2009–2016) – 2.4L \/ 3.0L \/ 3.6L engine knock sensor harness\u003c\/li\u003e\n\u003cli\u003eBuick GL8 (2010–2017) – 2.4L \/ 3.0L knock sensor connector\u003c\/li\u003e\n\u003cli\u003eBuick LZC \/ FirstLand – Knock sensor harness connector\u003c\/li\u003e\n\u003cli\u003eChevrolet Malibu (SAIC-GM) – Select engine configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: My Buick Lacrosse has P0325 — is it the knock sensor or the connector?\u003c\/strong\u003e\u003cbr\u003eA: P0325 on Buick Lacrosse is frequently caused by a corroded 2-pin connector rather than a failed knock sensor. Before replacing the sensor ($30–60), inspect the 34752-0204 connector for green corrosion or bent pins. Disconnect, clean with electrical contact cleaner, reconnect and clear codes — if P0325 does not return, the connector was the fault.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What happens if I drive with P0325 \/ P0327?\u003c\/strong\u003e\u003cbr\u003eA: The ECU loses knock feedback and defaults to a conservative ignition timing map (typically 4–8° retard from optimal). This causes measurable power loss (5–10%), increased fuel consumption, and potential long-term engine damage if detonation occurs undetected. Address the fault promptly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 34752-0204 and 347520204?\u003c\/strong\u003e\u003cbr\u003eA: They are the same part number — 34752-0204 is the hyphenated OEM format; 347520204 is the same number written without hyphens. Both refer to the identical connector.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are terminals included?\u003c\/strong\u003e\u003cbr\u003eA: Yes, terminals and wire seals are included with all variants.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"plug with Pin \/ 1 Pcs","offer_id":47838273700085,"sku":"14:200004889#plug with Pin;200001249:202408827#1 Pcs","price":18.48,"currency_code":"USD","in_stock":true},{"title":"plug with wires \/ 1 Pcs","offer_id":47838273732853,"sku":"14:200004890#plug with wires;200001249:202408827#1 Pcs","price":27.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Scf7639eab8c74da890d343e754f71564O.webp?v=1773728396","url":"https:\/\/www.csldmcml.com\/products\/2-pin-1-5mm-knock-sensor-connector-oem-34752-0204-buick-lacrosse-gl8-lzc-firstland","provider":"Cable Parts Online","version":"1.0","type":"link"}