{"product_id":"vw-4-pin-o2-oxygen-sensor-connector-oem-3a0973304-3a0973334","title":"VW 4-Pin O2 Oxygen Sensor Connector – OEM 3A0973304 \/ 3A0973334 | Golf Passat Tiguan","description":"\u003ch2\u003eVW 4-Pin O2 Oxygen Sensor Connector – OEM 3A0973304 \/ 3A0973334 | Golf \/ Passat \/ Tiguan\u003c\/h2\u003e\n\u003cp\u003eDirect OEM-specification replacement for the Volkswagen 4-pin heated oxygen sensor (HO2S) connector. Cross-references OEM part numbers \u003cstrong\u003e3A0973304\u003c\/strong\u003e (female\/socket side) and \u003cstrong\u003e3A0973334\u003c\/strong\u003e (male\/plug side). Used on upstream (pre-cat) and downstream (post-cat) oxygen sensors across VAG platforms. Available bare or with 15cm pre-wired leads.\u003c\/p\u003e\n\n\u003ch3\u003eVAG Part Number Decoder\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSegment\u003c\/th\u003e\n\u003cth\u003eMeaning\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3A0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVAG platform code (VW Passat B3\/B4 era)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e973\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrical connector component group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e304\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-pin female connector variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e334\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-pin male connector variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e4-Pin HO2S Circuit Function\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eFailure Symptom if Corroded\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eHeater element power (+12V switched)\u003c\/td\u003e\n\u003ctd\u003eP0135 \/ P0141 — O2 sensor heater circuit malfunction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eHeater element ground\u003c\/td\u003e\n\u003ctd\u003eSlow O2 warm-up, rich running when cold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eO2 signal output to ECU (0–1V)\u003c\/td\u003e\n\u003ctd\u003eP0130–P0167 — O2 sensor circuit fault, poor fuel economy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eSignal ground \/ reference\u003c\/td\u003e\n\u003ctd\u003eErratic O2 reading, ECU unable to trim fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\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\u003e4-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e3A0973304 \/ 3A0973334\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eHigh-temp nylon (PA66), waterproof sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Option\u003c\/td\u003e\n\u003ctd\u003eBare connector \/ 15cm pre-wired leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHeated oxygen sensor (HO2S) harness — upstream and downstream\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eVolkswagen, Audi, SEAT, Škoda\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFault Codes This Connector Fixes\u003c\/h3\u003e\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\u003eP0130\u003c\/td\u003e\n\u003ctd\u003eO2 sensor circuit — Bank 1, Sensor 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0136\u003c\/td\u003e\n\u003ctd\u003eO2 sensor circuit — Bank 1, Sensor 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0135\u003c\/td\u003e\n\u003ctd\u003eO2 sensor heater circuit — Bank 1, Sensor 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0141\u003c\/td\u003e\n\u003ctd\u003eO2 sensor heater circuit — Bank 1, Sensor 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVW Golf (Mk4\/Mk5\/Mk6\/Mk7) – Upstream and downstream O2 sensor harness\u003c\/li\u003e\n\u003cli\u003eVW Passat (B5\/B6\/B7) – Oxygen sensor connector\u003c\/li\u003e\n\u003cli\u003eVW Tiguan (5N\/AD) – HO2S harness\u003c\/li\u003e\n\u003cli\u003eAudi A4 \/ A6 – O2 sensor connector\u003c\/li\u003e\n\u003cli\u003eŠkoda Octavia \/ Superb – Shared VAG O2 sensor connector\u003c\/li\u003e\n\u003cli\u003eSEAT Leon \/ Ibiza – HO2S harness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are terminals included?\u003c\/strong\u003e\u003cbr\u003eA: Yes, terminals are included with all variants.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"1 Pcs \/ female with Pin \/ 1 Pcs","offer_id":47838236606709,"sku":"14:200004889#female with 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