{"product_id":"oem-gm-ecm-1226459-factory-ecu","title":"OEM GM ECM (1226459 DNN) – Factory ECU","description":"\u003cp data-start=\"907\" data-end=\"1119\"\u003eThis is an \u003cstrong data-start=\"918\" data-end=\"937\"\u003eoriginal GM ECM\u003c\/strong\u003e, service number \u003cstrong data-start=\"954\" data-end=\"982\"\u003e1226459 (DNN label code)\u003c\/strong\u003e, correct for \u003cstrong data-start=\"996\" data-end=\"1058\"\u003e1984–1985 Buick Grand National, T-Type, and Riviera T-Type\u003c\/strong\u003e equipped with the 3.8L SFI Turbo engine (non-intercooled).\u003c\/p\u003e\n\u003cp data-start=\"1121\" data-end=\"1453\"\u003e\u003cstrong data-start=\"1121\" data-end=\"1133\"\u003eDetails:\u003c\/strong\u003e\u003cbr data-start=\"1133\" data-end=\"1136\"\u003e• GM Service No. \u003cstrong data-start=\"1153\" data-end=\"1164\"\u003e1226459\u003c\/strong\u003e\u003cbr data-start=\"1164\" data-end=\"1167\"\u003e• Factory ECM for \u003cstrong data-start=\"1185\" data-end=\"1227\"\u003e1984–1985 Turbo Buick “Hot-Air” models\u003c\/strong\u003e\u003cbr data-start=\"1227\" data-end=\"1230\"\u003e• Compatible with OEM-style calibration chips for 84–85 systems\u003cbr data-start=\"1293\" data-end=\"1296\"\u003e• Dual connector ports — standard GM harness style\u003cbr data-start=\"1346\" data-end=\"1349\"\u003e• Aluminum housing, clean internal circuit visibility\u003cbr data-start=\"1402\" data-end=\"1405\"\u003e• Ideal as a test unit, spare, or rebuild core\u003c\/p\u003e\n\u003cp data-start=\"1455\" data-end=\"1683\"\u003e\u003cstrong data-start=\"1455\" data-end=\"1469\"\u003eCondition:\u003c\/strong\u003e\u003cbr data-start=\"1469\" data-end=\"1472\"\u003e• 🟡 Yellow Dot – Functional upon removal, untested since\u003cbr data-start=\"1529\" data-end=\"1532\"\u003e• Factory labels intact with minor wear\u003cbr data-start=\"1571\" data-end=\"1574\"\u003e• Normal surface oxidation from storage\u003cbr data-start=\"1613\" data-end=\"1616\"\u003e• Great candidate for restoration or chip tuning for 84–85 setups\u003c\/p\u003e\n\u003cp data-start=\"1455\" data-end=\"1683\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cstrong data-start=\"1171\" data-end=\"1188\"\u003eStock Notice:\u003c\/strong\u003e\u003cbr data-start=\"1188\" data-end=\"1191\"\u003e\u003cspan\u003eWe currently have multiple \u003c\/span\u003e\u003cstrong data-start=\"1209\" data-end=\"1230\"\u003eunits in stock.\u003c\/strong\u003e\u003cbr data-start=\"1230\" data-end=\"1233\"\u003e\u003cspan\u003eThe customer \u003c\/span\u003e\u003cstrong data-start=\"1246\" data-end=\"1289\"\u003emay not receive the exact unit pictured\u003c\/strong\u003e\u003cspan\u003e, but each ECM will match the same \u003c\/span\u003e\u003cstrong data-start=\"1324\" data-end=\"1361\"\u003eOEM part number and label code (DNN)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1685\" data-end=\"1828\"\u003e✅ \u003cstrong data-start=\"1687\" data-end=\"1711\"\u003eAll sales are final.\u003c\/strong\u003e\u003cbr data-start=\"1711\" data-end=\"1714\"\u003eNo refunds, returns, or exchanges.\u003cbr data-start=\"1748\" data-end=\"1751\"\u003eItems are sold \u003cstrong data-start=\"1766\" data-end=\"1776\"\u003eas-is.\u003c\/strong\u003e Buyer is responsible for verifying compatibility.\u003c\/p\u003e","brand":"Watts Performance Solutions","offers":[{"title":"Default Title","offer_id":42535366033471,"sku":"pauls","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0570\/2310\/3039\/files\/ScreenShot2025-11-08at9.33.51AM.png?v=1762612559","url":"https:\/\/wattsperformance.com\/products\/oem-gm-ecm-1226459-factory-ecu","provider":"Watts Performance Solutions","version":"1.0","type":"link"}