NOTE: This item is intended for consumers that already own, or have access to a OBD2 Scan Tool. This kit includes the GM-GFY PCV adapter, the necessary hardware for installation and the installation guide. It does NOT include a Scan Tool. The complete kit (sku 100-101) including a Scan Tool is also available here: https://www.therealdealnh.com/shop/p/tne-pcv-adapter-kit-gm-gfy-v22

INTERNATIONAL SALES: Available through our Ebay Store Only: https://www.ebay.com/itm/117043314920

GM-GFY Adapter Only Kit 100-102

Let your check engine light take a well deserved break with the new GM-GFY V2.2 adapter kit by TNE. Designed to mitigate the notorious "P04FB" causing design flaw in GM LSY series engines (see vehicle list below), this kit restores your vehicle's reliability* and brings back features like remote start which are deactivated when the check engine light is active. The GM-GFY adapter sits between the moist crankcase air and the sensitive PCV pressure sensor. The GM-GFY collects the moisture suspended in the air stream and allows it to condense before reaching your PCV sensor while still allowing for an accurate pressure reading.

We believe anyone should be able to fix their own vehicle, so we engineered this kit for the easiest possible installation. With our clear, fully illustrated color manual, you’ll be guided through the entire process from start to finish.

Performance Notice: The factory PCV system in these vehicles is notoriously under-engineered. The GM-GFY represents the most effective and affordable improvement to mitigate this flawed design. While the only guaranteed solution would be a ground-up redesign of the entire PCV system; a costly and complex endeavor, the GM-GFY has proven to resolve these inherent flaws for the vast majority of our customers, the majority of the time.

Due to variables beyond our control, including ambient temperature, humidity, and specific driving habits (such as frequent short commutes versus long highway trips), we cannot provide an absolute guarantee for every scenario. While an occasional "errant" check engine light remains possible, the GM-GFY significantly reduces these occurrences compared to the stock configuration in all cases, and will eliminate them entirely in many other cases.

We know you’ve already been let down by your vehicle manufacturer, so we want to be upfront and honest about what we can and cannot solve without you having to spend hundreds or even thousands of dollars. With that in mind, we offer a 30-day money-back guarantee in the event this does not meet your expectations.

Backed by a 2 year limited warranty, you can feel confident that your days of fighting your check engine light are over.

Kit Includes:

• TNE GM-GFY V2.2 adapter

• All new hardware, upgraded to stainless steel.

• 5mm Allen wrench for installation.

• Step by step, fully illustrated installation guide.

Compatible with:

2019 – 2025 Cadillac XT4 350T

2020 – 2023 GMC Acadia

2020- 2026 Cadillac XT5 350T

2021 – 2025 Cadillac XT6 350T

2020 – present Cadillac CT4 350T

2020 – present Cadillac CT5 350T

2020 – present Chevrolet Blazer

2022 – present Buick Envision Plus

©2026 TNE ENTERPRISES LLC  ALL RIGHTS RESERVED.  All product names, logos, brands, and trademarks—including GM and General Motors—are the property of their respective owners. Use of these names, trademarks, and brands does not imply endorsement, affiliation, or sponsorship. These terms are used in this documentation for identification and compatibility purposes only. TNE ENTERPRISES LLC is an independent aftermarket manufacturer and is not associated with or authorized by General Motors.