JTech Autoserv - Having another Mazda 3 Skyactiv visited for intake valve walnut blast carbon clean up @69,000km. It resume smooth air flow at the valve side for adequate and even air-fuel
![90K, Intake Valve Cleaning, PCV, plugs, belts, etc.--Carbon build up is real | Page 3 | 2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums 90K, Intake Valve Cleaning, PCV, plugs, belts, etc.--Carbon build up is real | Page 3 | 2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums](https://i.ytimg.com/vi/sHpRZTY70Mw/maxresdefault.jpg)
90K, Intake Valve Cleaning, PCV, plugs, belts, etc.--Carbon build up is real | Page 3 | 2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums
JTech Autoserv - Another one Mazda 3 Skyactiv visited for intake valve walnut blast to de-carbon. Rejuvenate the driveability like new car. Rm480, walnut blast, incorporating with LiquiMoly carbon cleaning liquid. Refine
![There's Nothing Positive About the 2.0L SkyActiv PCV System! – JBR – Aftermarket Parts & Accessories There's Nothing Positive About the 2.0L SkyActiv PCV System! – JBR – Aftermarket Parts & Accessories](https://www.jamesbaroneracing.com/wp-content/uploads/2015/11/2LMZOCC-9.jpg)
There's Nothing Positive About the 2.0L SkyActiv PCV System! – JBR – Aftermarket Parts & Accessories
![Manually cleaned my intake valves. 2.5 Skyactiv @ 256k. Night and day difference in throttle response. : r/mazda3 Manually cleaned my intake valves. 2.5 Skyactiv @ 256k. Night and day difference in throttle response. : r/mazda3](https://preview.redd.it/manually-cleaned-my-intake-valves-2-5-skyactiv-256k-night-v0-2aazqbibijyb1.png?width=640&crop=smart&auto=webp&s=36f4b434301c2b66bb102d572d2c760f4e3fb914)