FUEL MAPS EXPLAINED | Breaking down the Air-fuel ratios of gasoline engines

We dive into the relationship between Air-fuel ratio and performance, fuel economy and emissions. This gives us an insight about how fuel map values are selected during engine tuning.
Learn about the benefits and disadvantages of stoichiometric, rich and lean combustion.

[@bobbyd592]

Very well explained. This is how some of these “ tuner youtube “ guys should explain tuning on here instead of watching their silly faces. Thanks for this! Will be looking for more informational videos.

[@Orthaluminox]

I second that! Very well said!

[@jamsbong]

I hope your channel continues to grow. Please keep up the good work

[@captain052A]

Best explaination in the whole world!!!

[@engineeringcarsuniverse6524]

Thanks for supporting!

[@yarilich544]

This is the single video I've seen today that answered all my questions:
1. How does air-fuel mixture change in different engine operation modes?
2. What is the job of the fuel injector/carburetor?
Also, I found out how engine load is measured and why running wide-open at high RPMs leads to fast fuel consumption.
And I was afraid fuel injection would be hard to comprehend, but looks like fuel map concept is even easier than carburetor operation

[@Fontanero_Larry]

this channel is gold, i gonna suscribe even this is a year ago, but if you gonna upload again man your content is good like real good, and you get it short and precise and very entertaining to watch.

[@sxs4l245]

This was great. Easy to understand. Good job, i enjoyed.

[@sepharc]

Excellent explanation! Thank you

[@BALIST0N]

wow that's so clear cristal in my mind now ! thanks a lot !

[@FilterYT]

Thanks you for this and the ignition timing video as well, these were both extremely well done!

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@Layton Messiah instablaster ;)

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[@karsynbraydon8137]

@Layton Messiah you are welcome xD

[@willis23jm1]

Great explanation video..

[@chinoyosake8721]

Nice.. the best explanation ever

[@engineeringcarsuniverse6524]

thank you :D

[@guillermogarza1133]

muy interesante!! muy completa e ilustrada de una forma muy dinámica toda la información! sigue así jommie

[@engineeringcarsuniverse6524]

Gracias! El apoyo es motivacion para continuar :D

[@colin16lax]

Fantastic video

[@dylanstewart7708]

Great video

[@peixevoador100]

Very nice sir, thanks a lot! Excelent explanation

[@engineeringcarsuniverse6524]

Thank you for the support! 🙏

[@jamsbong]

Can you make a video about the effects on exhaust recirculation to emissions and power?
Over the years, I am seeing an increasing amount of set up for exhaust recirculation. I have seen in exhaust gas that is cooled before introducing into the combustion chamber.

[@NaiyimsGarage]

good video

[@Fayis1341]

Great

[@henrycoles5584]

Good explanation. Question - how is an A/F of e.g. 12.7 happen if the O2 sensor is switching at 14.7?

[@StefanKrunic]

o2 sensor is ignored at wide open throttle.

[@arod8966]

👍👍

[@satishnatarajan]

Shouldn't the fuel-air mixture be richer during idling i.e. an A/F ratio of somewhere around 13 or 12?

[@a.a7648]

It is reached during idling

[@lemonstrangler]

heard this in fast and furious, is there like a device that can be attached on the car to see this ?

[@vroomvroom4061]

great into video, but at 0:40 it says affetcs instead of affects

[@MunsKi]

but it says lean burns faster