NOTE: This is the “Full Install Kit” which includes an OBD-2 Scan Tool that will also work with ANY vehicle with an OBD-2 port. If you already own a Scan Tool, we also offer the Adapter Only option at a lower cost but keep in mind, you will need a Scan Tool to complete the installation if you go with the Adapter Only Version here: https://tnedirect.com/shop/p/gm-pcv-adapter-adapter-only-corrects-p04fb-check-engine-ct4-ct5-xt4-xt5-buick
INTERNATIONAL SALES: Available through our Ebay Store Only: https://www.ebay.com/itm/117043254743
GM-GFY Adapter Only Kit 100-101
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, LSD and LYX 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 vast 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 most 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 we do not meet your expectations.
Backed by a 2 year limited warranty, you can feel confident that your days of frequently 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 – 2026+ Cadillac XT4 350T
2020 – 2023 GMC Acadia
2023 – 2026+ GMC Terrain
2020 – 2026+ Cadillac XT5 350T
2021 – 2025 Cadillac XT6 350T
2020 – Present Cadillac CT4 350T
2020 – Present Cadillac CT5 350T
2020 – Present Chevrolet Blazer
2023 – Present Chevrolet Equinox
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.
![GM-GFY PCV [ADAPTER ONLY] Address](https://images.squarespace-cdn.com/content/v1/68a9c82af18f8b002504e647/44b4f2ea-704e-4385-bcb1-3c042ed0f959/GM-GFY+Adapter+Only.jpg)
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://tnedirect.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, LSD and LYX 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 vast 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 most 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 we do not meet your expectations.
Backed by a 2 year limited warranty, you can feel confident that your days of frequently 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 – 2026+ Cadillac XT4 350T
2020 – 2023 GMC Acadia
2023 – 2026+ GMC Terrain
2020 – 2026+ Cadillac XT5 350T
2021 – 2025 Cadillac XT6 350T
2020 – Present Cadillac CT4 350T
2020 – Present Cadillac CT5 350T
2020 – Present Chevrolet Blazer
2023 – Present Chevrolet Equinox
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.
Fits the following vehicles with the 1.5L or 2.0L Turbo engine’s:
Buick Envision, Envision Plus/S
Cadillac CT4 350T
Cadillac CT5 350T
Cadillac XT4 350T, XT5 350T
Chevrolet Equinox
GMC Terrain
Chevrolet Blazer
Chevrolet Malibu
GMC Acadia
What our customers are saying:
“It’s clear that a great deal of attention has gone into the quality of this item. Even during the colder days where it would typically go off, it hasn’t.”
“The part has been performing exceptionally well, and I am very pleased with its reliability and performance.”
“Everything aligned perfectly and the installation went smoothly from start to finish. I have not experienced any issues and it has been functioning exactly as intended. I started the caddy this morning and wind chill in Toronto was marked at -30! It wouldn't have survived if you asked me months ago.”
“Just as described. Excellent customer service. Fixed my CT5 with no issues.”
“Part fit well ! Great instructions ! Thanks for your ingenuity in solving this problem when GM wouldn’t.”
“Great part that solves the problem that GM refuses to acknowledge or solve”
“The GM-GFY is a simple to install no nonsense method to fix that dreaded P04FB check engine light. I installed this on a 2025 Equinox with the 1.5 Turbo engine. It took all of 10 minutes to install including time to take the pictures. The last two photos will show the adapter installed. If you look at the before and after, you will notice the sensor sits a little higher and does not interfere with the dipstick.
So YES this will work on your 1.5 turbo too!”