{"product_id":"audi-3-pin-2-5mm-high-pressure-fuel-pump-connector-oem-4d0971993a-v2","title":"Audi 3-Pin 2.5mm High-Pressure Fuel Pump Waterproof Connector – OEM 4D0971993A \/ 4D0971993","description":"\u003ch2\u003eAudi 3-Pin 2.5mm High-Pressure Fuel Pump Waterproof Connector – OEM 4D0971993A \/ 4D0971993\u003c\/h2\u003e\n\n\u003cp\u003eDirect OEM-specification replacement for the 3-pin waterproof wire harness connector used on high-pressure fuel pumps (HPFP) across Audi platforms. Cross-references Audi OEM part numbers \u003cstrong\u003e4D0971993A\u003c\/strong\u003e and \u003cstrong\u003e4D0971993\u003c\/strong\u003e (also written as \u003cstrong\u003e4D0 971 993A\u003c\/strong\u003e). Uses the \u003cstrong\u003e2.5mm contact series\u003c\/strong\u003e in female housing with waterproof sealing — designed for direct injection high-pressure fuel pump applications on Audi’s V6, V8, and W12 engine platforms.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Problem Does This Connector Solve?\u003c\/h3\u003e\n\u003cp\u003eA failed connector causes the HPFP to lose its control signal, resulting in \u003cstrong\u003eP0087\u003c\/strong\u003e (low fuel pressure) and \u003cstrong\u003eP0191\u003c\/strong\u003e fault codes, hard starting, rough running, and potential no-start conditions. On Audi V8 and W12 engines, the HPFP connector is frequently damaged during engine bay work due to its location beneath the intake manifold.\u003c\/p\u003e\n\n\u003ch3\u003eOEM Part Number Cross-Reference\u003c\/h3\u003e\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\u003e4D0971993A\u003c\/td\u003e\n\u003ctd\u003eAudi 3-pin HPFP connector (primary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4D0971993\u003c\/td\u003e\n\u003ctd\u003eAudi 3-pin HPFP connector (superseded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e3-Pin Circuit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 Open\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eHPFP solenoid power supply (12V)\u003c\/td\u003e\n\u003ctd\u003ePump inoperative, P0087 low fuel pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eHPFP solenoid ground\u003c\/td\u003e\n\u003ctd\u003ePump inoperative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eECM control signal (PWM)\u003c\/td\u003e\n\u003ctd\u003eFuel pressure not regulated, P0191\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\u003e3-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Series\u003c\/td\u003e\n\u003ctd\u003e2.5mm pitch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGender\u003c\/td\u003e\n\u003ctd\u003eFemale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealing\u003c\/td\u003e\n\u003ctd\u003eWaterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e4D0971993A \/ 4D0971993\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eHigh-pressure fuel pump (HPFP), direct injection fuel system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eAudi A6 C5 4.2 V8; Audi A8 D2\/D3 4.2 V8 \/ 6.0 W12; Audi S6 \/ S8 \/ RS6 (C5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: My Audi A8 has a P0087 low fuel pressure fault — could it be the HPFP connector?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Inspect the connector before replacing the high-pressure fuel pump, which is a significantly more expensive repair.\u003c\/p\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":"female \/ 1 set","offer_id":47838217765109,"sku":"14:200004889#female;200001249:202408827#1 set","price":16.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S6a1cd4bf01c2478b82cf6147a0c56fafK_8b36012b-9e17-4030-b804-6b679d864cc7.webp?v=1773727884","url":"https:\/\/www.csldmcml.com\/products\/audi-3-pin-2-5mm-high-pressure-fuel-pump-connector-oem-4d0971993a-v2","provider":"Cable Parts Online","version":"1.0","type":"link"}