{"product_id":"gm-e42-ecm-service-l5p-global-b-upgrade-only","title":"GM E42 ECM Service (L5P, Global B) - Upgrade Only","description":"\u003cp\u003e\u003cstrong\u003eTune your 2024 and newer L5P Duramax.\u003c\/strong\u003e The refreshed HD trucks moved to GM's Global B electronics and the E42 engine computer, which has to be upgraded before it can be tuned. This one-time HP Tuners send-in service upgrades your original ECM so you can calibrate, data log and flash through the OBDII port with VCM Suite.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #d52837;\"\u003e\u003cstrong\u003eThis is a send-in service.\u003c\/strong\u003e Your ECM has to come out of the truck and ship to HP Tuners, so the truck will be down while it's away. Please read this whole page before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWill it work on my truck?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2024-2026 Chevrolet Silverado and GMC Sierra 2500HD\/3500HD 6.6L Duramax (L5P)\u003c\/li\u003e\n\u003cli\u003e2024-2026 Chevrolet Silverado and GMC Sierra 4500HD\/5500HD\/6500HD 6.6L Duramax (L5D)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e2017-2023 L5P trucks use the E41 ECM. See our \u003ca href=\"\/products\/gm-e41-ecm-services-l5p-upgrade-only\"\u003eGM E41 ECM Services (L5P)\u003c\/a\u003e or the \u003ca href=\"\/products\/gm-e41-ecm-upgrade-kit\"\u003eE41 Upgrade Kit\u003c\/a\u003e instead. For transmission tuning on the 10-speed, see the \u003ca href=\"\/products\/gm-t93-tcm-service-global-b-upgrade-only\"\u003eGM T93 TCM Service (Global B)\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat else you'll need (sold separately)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 \u003ca href=\"\/products\/hp-tuners-universal-tuning-credit-for-mpvi2-mpvi3\"\u003eUniversal Credits\u003c\/a\u003e\u003c\/strong\u003e to license the E42 ECM.\u003c\/li\u003e\n\u003cli\u003eAn HP Tuners \u003cstrong\u003eMPVI3 or \u003ca href=\"\/products\/hp-tuners-mpvi4-tuner-1\"\u003eMPVI4\u003c\/a\u003e\u003c\/strong\u003e. Global B vehicles do not work with the MPVI2 or MPVI2+.\u003c\/li\u003e\n\u003cli\u003eThe latest VCM Suite BETA software (free from HP Tuners) and an internet connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm your truck is covered and place your order. Have your VIN handy; HP Tuners requires it.\u003c\/li\u003e\n\u003cli\u003eOur team emails you the order number and the HP Tuners shipping form.\u003c\/li\u003e\n\u003cli\u003eRemove the ECM, pack it carefully with the completed form inside, and write the order number on the outside of the box.\u003c\/li\u003e\n\u003cli\u003eShip it to HP Tuners with any carrier. Shipping to HP Tuners is the customer's responsibility; the shipping charged at checkout covers the return trip.\u003c\/li\u003e\n\u003cli\u003eHP Tuners upgrades the ECM and ships it back.\u003c\/li\u003e\n\u003cli\u003eReinstall it, license it with 8 Universal Credits and start tuning.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eShip to:\u003c\/strong\u003e\u003cbr\u003eHP Tuners, LLC\u003cbr\u003eATT: GM E42 ECM Service (L5P, Global B)\u003cbr\u003e[Your order number]\u003cbr\u003e711 Dartmouth Lane\u003cbr\u003eBuffalo Grove, IL 60089\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #d52837;\"\u003e\u003cstrong\u003eWait for our email before you ship.\u003c\/strong\u003e\u003c\/span\u003e Please don't send your ECM until you have the order number and shipping form.\u003c\/p\u003e\n\u003ch3\u003eBefore you ship: important\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSend the original ECM from your truck. Spare ECMs are not accepted under any circumstances.\u003c\/li\u003e\n\u003cli\u003eECMs with broken locking tabs or connectors will not be accepted.\u003c\/li\u003e\n\u003cli\u003eDo not install and relearn a spare ECM while yours is away. If you do, your upgraded original will no longer work in the truck.\u003c\/li\u003e\n\u003cli\u003eAfter reinstalling, connect with VCM Scanner and read and clear codes first. The truck may need a dealer resync; that is the owner's responsibility.\u003c\/li\u003e\n\u003cli\u003eOnce upgraded, the ECM can only be tuned through the OBDII port with HP Tuners software. Scan tools and dealer diagnostics keep working, and you can return to stock any time with VCM Suite.\u003c\/li\u003e\n\u003cli\u003eThis service is performed at the owner's risk. Normal wear and weathering from the ECM's location in the truck is expected.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HP Tuners","offers":[{"title":"Default Title","offer_id":54891434672446,"sku":"ECM-E42-L5P-U","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/9301\/0238\/files\/E42-L5P-GLOBAL-B-PRODUCT-TILE-e1753815558552.jpg?v=1794266188","url":"https:\/\/tunerstore.com\/products\/gm-e42-ecm-service-l5p-global-b-upgrade-only","provider":"The Tuner Store","version":"1.0","type":"link"}