Direct Injection vs Port Injection ~ Difference Explained

Direct Fuel injection puts fuel right into the cylinder Port does it behind the intake valves. Both direct injection and port injection have pros and cons. Carbon buildup on backs of intake valves is the most common issue with direct injection engines. #shorts #shortvideo #shortfeed #youtubeshorts #humblemechanic

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disclaimer:
The content of this video is available for informational and educational purposes only. It is not intended to be a substitute for the professional advice of a mechanic who has personally inspected your vehicle, nor does it create a relationship of any kind between the Humble Mechanic and you. Every situation may be different, and the Humble Mechanic does not make any warranties, whether express or implied, as to the accuracy, fitness, or applicability of the information or automotive parts portrayed in this video to any project and makes no guarantee of results. The Humble Mechanic and any sponsors of this video will not be liable for any damages related to personal injury, property damage or loss of any kind that may result from the use or reliance on this video and/or any automotive parts represented in this video. You are using the information and automotive parts portrayed in this video solely at your own risk.

[meeder]

The combined way is the best, it has the advantages of direct injection and the cleaning action of port injection.

[TeamWinnieRacing]

As said during a prayer to the car gods, "thank you holy spirit for direct port nitrous injection, ball bearing turbos and titanium valves springs" amen

[crackpotfox]

Direct injection: Slightly more power
Port injection: Significantly more reliability

[strauss]

Tip if you have a direct only engine - Get an oil catch can to save your intake valves. Over time the valves will get junk on top from PCV blow by. Since there is no fuel being blasted on them (this cleans them as well) they will get build up over time and can cause the valves to not seal properly.

[fg]

Let us see those intake valve ports on the DI design…

[Crummieboi]

Im gonna say it.


Dont drop a screw in there.

[zajtoja]

Thanks for the presentation, I haven't had a direct injected car so far, good to know.

[illililililillli]

Port injection > Direct injection in terms on maintenance and daily driver imo. I never ran direct injection on high performance applications only port injection so I can't say if they shine in that aspect or not.

[AmericanRustWorker]

All direct injection engines were the biggest fuck up in automotive history

[f.chrisliuzzo]

When a vehicle that has both types of fuel injection it’s usually the port injections job to clean the oil off the back of the valves. And the direct injection part is for power and the system alternates between the two if equipped like the newer tacomas have..

[gbux]

Great explanation! Which is better for performance and/or reliability?

[DaneFerolin]

Currently own vr30 direct injection, I change oil often due to gas getting into oil

[nath_taylrr]

Can you do a comparison video on fsi, tfsi and tsi?

[Deeked]

Direct injection is terrible. Wait till the carbon builds up on your valves. 🤣

[johnathankrausrig]

I recommend to Check out driving 4 answers. He explained anything a mechanic wants to know on that topic

[shashikaharripersadh]

Thank you for the knowledge my A4 b8 needs an injector replacement please make a DIY video

[MrPacman]

What about throttle body over fuel injection? My poor car always gets left out

[jareknowak]

My Mitsubishi 1.8L GDI is from 2001, it has over 240 000 km. Nevet had any problems with it, including whole direct injection system.
VAG from 2019.
Already needs repairs?
:P

[worldhello]

One of those super rad cars are the Lexus IS 350, Subaru BRZ, Toyoda GT86. Both have basically a Subaru engine with Toyoda D4-S. Volkswagen on the other hand thought that their engines are already overengineered as they are and given how lazy those Americans are regarding maintenance, they simply would sell more cars that way.

[GIGABACHI]

Which USDM VW model comes equipped with dual injection ? The last I heard only the Euro models had the dual setup.