{"product_id":"28-pin-ecu-engine-computer-connector-oem-64318-1011-female-30cm-harness","title":"28-Pin ECU Engine Computer Connector OEM 64318-1011 – Female Bare or 30cm Harness","description":"\u003ch2\u003e28-Pin ECU Engine Computer Connector OEM 64318-1011 – Female (Bare or 30cm Pre-Wired)\u003c\/h2\u003e\n\u003cp\u003eThe OEM \u003cstrong\u003e64318-1011\u003c\/strong\u003e is a 28-pin female connector used in \u003cstrong\u003eengine computer (ECU\/ECM) harnesses\u003c\/strong\u003e. This connector serves as one of the ECU's primary harness interfaces, carrying a subset of engine management circuits — typically sensor inputs (MAF, MAP, TPS, temperature sensors), actuator outputs (VVT solenoids, EGR valve, EVAP purge), and CAN bus circuits. Available bare or with 30cm pre-wired leads for harness extension and ECU relocation applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 64318-1011\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePin count:\u003c\/strong\u003e 28-pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Female (harness-side)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable as:\u003c\/strong\u003e Bare connector or 30cm pre-wired colour-coded leads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e ECU\/ECM primary harness connector, engine management circuit interface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnector family:\u003c\/strong\u003e Molex MX150 \/ equivalent 28-pin ECU series\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical 28-Pin ECU Circuit Groups\u003c\/h3\u003e\n\u003cp\u003eA 28-pin ECU connector typically carries the following circuit groups (exact pin assignment varies by vehicle and ECU manufacturer):\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor inputs (Pins 1–8):\u003c\/strong\u003e MAF sensor signal, MAP sensor signal, TPS signal, coolant temperature (ECT), intake air temperature (IAT), knock sensor signal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator outputs (Pins 9–16):\u003c\/strong\u003e VVT\/VVTI solenoid control, EGR valve control, EVAP purge solenoid, idle air control (IAC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower \u0026amp; ground (Pins 17–20):\u003c\/strong\u003e ECU main power (IGN), battery backup, chassis ground, sensor ground reference\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCAN bus (Pins 21–22):\u003c\/strong\u003e CAN High \/ CAN Low (powertrain CAN bus)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication (Pins 23–28):\u003c\/strong\u003e OBD-II K-line \/ ISO 9141, immobiliser transponder signal, TCM communication\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications for ECU Connector Repair\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater ingress repair:\u003c\/strong\u003e Flooded engine bay causes pin corrosion and short circuits in the ECU connector — the most common cause of multiple simultaneous fault codes after a flood event\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRodent damage:\u003c\/strong\u003e Rodents chew through harness wires at the ECU connector, causing open circuits on sensor and actuator circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eECU relocation:\u003c\/strong\u003e Performance builds requiring the ECU to be moved to the cabin or boot use the 30cm pre-wired version to extend the harness\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnector pin corrosion:\u003c\/strong\u003e Long-term moisture ingress causes green\/white oxidation on ECU connector pins, resulting in high-resistance sensor faults\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAftermarket ECU installation:\u003c\/strong\u003e Standalone ECU (Haltech, MoTeC, Link, AEM) installations requiring OEM connector pigtails for plug-in compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFault Codes Caused by ECU Connector Faults\u003c\/h3\u003e\n\u003cp\u003eA damaged or corroded 28-pin ECU connector can cause a wide range of fault codes simultaneously:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eP0100–P0104:\u003c\/strong\u003e MAF sensor circuit faults\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eP0105–P0109:\u003c\/strong\u003e MAP sensor circuit faults\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eP0110–P0118:\u003c\/strong\u003e Intake air \/ coolant temperature sensor faults\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eP0120–P0124:\u003c\/strong\u003e Throttle position sensor faults\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eP0325–P0334:\u003c\/strong\u003e Knock sensor circuit faults\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eU0073:\u003c\/strong\u003e CAN bus communication fault (if CAN bus pins are affected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey diagnostic indicator:\u003c\/strong\u003e If you have 5+ sensor fault codes appearing simultaneously after a flood or rodent damage event, the ECU connector is almost certainly the root cause — not multiple failed sensors.\u003c\/p\u003e\n\n\u003ch3\u003eECU Connector Repair: Step-by-Step\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and wait 5 minutes before working on the ECU harness\u003c\/li\u003e\n  \u003cli\u003eUnplug the ECU connector and inspect all 28 pins for corrosion (green\/white oxidation) or physical damage\u003c\/li\u003e\n  \u003cli\u003eUse electrical contact cleaner (CRC QD or equivalent) to clean corroded pins — do not use water\u003c\/li\u003e\n  \u003cli\u003eIf corrosion is severe or pins are bent\/broken, replace the connector using the bare or pre-wired version\u003c\/li\u003e\n  \u003cli\u003eFor pre-wired replacement: cut back the damaged harness section and splice in the new connector leads using heat-shrink solder connectors\u003c\/li\u003e\n  \u003cli\u003eApply dielectric grease to all pins before reconnecting to prevent future corrosion\u003c\/li\u003e\n  \u003cli\u003eReconnect battery and clear all fault codes with an OBD-II scanner\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I know if the ECU connector is the problem vs the ECU itself?\u003c\/strong\u003e\u003cbr\u003eA: If multiple sensor fault codes appeared suddenly (especially after water exposure or rodent damage), the connector is the most likely cause. Test each sensor circuit at the connector pins with a multimeter — if sensor resistance\/voltage is correct at the sensor but absent at the ECU connector pin, the connector or harness is the fault.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this connector for an aftermarket standalone ECU?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The 30cm pre-wired version is commonly used for Haltech, MoTeC, Link ECU, and AEM plug-in ECU installations where the aftermarket ECU uses the same OEM connector interface. Verify the pin count and housing geometry match your ECU's connector before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between ECU and ECM?\u003c\/strong\u003e\u003cbr\u003eA: ECU (Engine Control Unit) and ECM (Engine Control Module) are interchangeable terms for the same component — the main engine management computer. Some manufacturers use ECU (Toyota, Honda, Nissan), others use ECM (GM, Ford, Chrysler). Both refer to the same device.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why is the pre-wired version 30cm instead of 15cm?\u003c\/strong\u003e\u003cbr\u003eA: ECU harness repairs typically require more lead length than sensor connectors because the ECU is usually located in a protected area (firewall, under dashboard) with limited access. The 30cm leads provide enough length to route the repair splice away from the ECU housing and into an accessible section of the harness.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"Female","offer_id":47831529455861,"sku":"14:202642826#Female","price":85.0,"currency_code":"USD","in_stock":true},{"title":"Female 30CM","offer_id":47831529488629,"sku":"14:200004889#Female 30CM","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S2245440c0ea5453dba89505bf1a646f0m.webp?v=1773629030","url":"https:\/\/www.csldmcml.com\/products\/28-pin-ecu-engine-computer-connector-oem-64318-1011-female-30cm-harness","provider":"Cable Parts Online","version":"1.0","type":"link"}