How the Fuel and Ignition Systems Work
Автокөліктер мен көлік құралдары
Here's how the fuel and ignition systems work to power the engine on your car!
There are three requirements for an internal combustion engine to work, fuel, air and spark.
The fuel system comprises of the fuel pump, fuel rail and fuel injectors that feed fuel into the intake plenum. The spark is governed by the ignition system, typically from a coil pack situated on top the spark plug. The air system is comprised of the air inlet, throttle body and intake plenum.
More information on the air intake system can be found in this video:
• How an Air Intake Syst...
All of these components are controlled through the Engine Control Unit (ECU) that determines when and how combustion occurs in the 4 stroke cycle.
The ignition coil transfer the 12V signal from the ECU into thousands of volts needed to fire the spark plug. There are two windings of coil inside, that form a step-up transformer. The change in magnetic field when the coil is rapidly turned on and off causes the huge voltage spike needed to jump the spark plug gap. The timing of this is controlled by the ECU, which is typically just before the piston reaches top dead center.
The fuel injector has a small coil inside, when activated it forms an electromagnet. This sucks the pintle valve that was blocking gasoline flow up, allowing fuel to flow out the nozzle in a predetermined spray pattern, into the intake manifold on a port injected engine. The fuel mixes with the air stream and is then released into the combustion chamber on the piston's down-stroke when the intake valves open up.
Notable inputs to this closed-loop control system include driver input from the throttle, the throttle position sensor, oxygen (A/F) sensor, camshaft and crankshaft position sensor, knock sensor, mass airflow sensor and coolant temperature sensors.
OBDII readers can be found here:
amzn.to/31OeTto (US)
amzn.to/2KDyDdA(Canada)
Fuel injector cleaner can be purchased here:
amzn.to/33LQFSL (US)
amzn.to/2H7DotV (Canada)
Multimeter for diagnostics:
amzn.to/2KUn7cF (US)
amzn.to/31JIggC (Canada)
Replacement spark plugs (Iridium):
amzn.to/2Nd7G2f (US)
amzn.to/2Z8yQcH (Canada)
Replacement ignition coils can be found here:
amzn.to/2Zd9PNI (US)
amzn.to/31Lsa63 (Canada)
Replacement oxygen sensor:
amzn.to/31KaA2l (US)
amzn.to/2ZacYOc (Canada)
This is the Camera I use:
amzn.to/2Y24ixX (US)
amzn.to/2Yhb3eo (Canada)
Link to Etsy shop where you can purchase speedkar99's brother's socks, t-shirts or hoodies:
www.etsy.com/ca/shop/Speedkar
Check out the speedkar99 Facebook page:
/ speedkar9
Check out the speedkar99 Linkedin page:
/ speedkar99
Follow speedkar9 on Instagram for behind the scenes coverage:
/ speedkar9
Subscribe for more videos just like this:
kzread.info_...
Пікірлер: 218
No one can explain any car system like you thanks
@speedkar99
5 жыл бұрын
Awesome thanks for the compliment
@doclowe5184
2 жыл бұрын
Set up cylinder for both injection and timed spark y
@doclowe5184
2 жыл бұрын
J
@chiefdenis
2 жыл бұрын
It's a super power
Thank you ECU, thank you. And thank you brother's toothbrush too
@blackonblack...9244
5 жыл бұрын
No, thank you Rudolf Diesel. The inventor of the combustion engine.
@speedkar99
5 жыл бұрын
Haha the teach-brush
Just yesterday my car stopped working, turned out to be a faulty camshaft sensor which lead to misfiring in the engine. This video explains really well how it works and why this sensor is so important. Your videos are great, thank you very much.
@speedkar99
4 жыл бұрын
Glad it helped. How difficult was the cam sensor to Change?
Awesome explanation, thanks very much.
@speedkar99
5 жыл бұрын
You are welcome!
Terrific job, especially towards the end with the graphs showing how the air intake reading corresponds and affects other aspects. You really do a thorough job. I like how you cut open the parts and show them to your viewers. Your humor is just enough which shows a high degree of emotional intelligence. Because you combine high knowledge with everyday speech. I like when you say I'm going to use the specialty tool and then cut stuff open with your angle grinder; that's hilarious.
@speedkar99
4 жыл бұрын
Thanks I'm glad you enjoyed my video style and can take away from it. Lots more video to come 😊
I know you went to automotive school as soon as you mention the stoichiometric ratio. Great vid. Thanks. And for those who don't know, here it is. "The stoichiometric ratio is the exact ratio between air and flammable gas or vapor at which complete combustion takes place. The stoichiometric ratio of combustion varies for various fuels and oxidizers. If the engine has less air than the stoichiometric ratio, you have a rich mixture, because it is rich in gasoline." It is about complete or perfect combustion.
@speedkar99
4 жыл бұрын
Thanks. I studied mechanical engineering, not auto school.
I see Oral B finally made you an offer about product placement.
@speedkar99
4 жыл бұрын
Haha no they didn't. My wife put that in place
A brilliant explanation again! Thanks for taking the time to make these videos. I hope other people find them as interesting and informative as I do.
@speedkar99
4 жыл бұрын
Glad you find it useful. Please share. Thanks
@samtumalabar9767
3 жыл бұрын
Normally, I don't comment on KZread but it would be ungrateful to not encourage this brilliant "professor" by commenting. I watched many videos of different people by none of them can compare to this man.
Great job as always!
@speedkar99
5 жыл бұрын
Thanks
pure Bliss ! I used to think comments from Mike Rowe were pretty amazing but here you cover everything perfectly well: theory & practice 🤗
I stumbled across this channel only just recently, but oh man, this is a goldmine of information. Thank you for the awesome, well-paced and well-explained video, very much appreciated!
I'm so amaze, how can you describe almost any car of a different make as you are involved with the design production and expert service technicians? You show us what's inside each component and how each one works. Bravo continues to work
Very cool video... Amazing how all the parts and systems are orchestrated to work together
@speedkar99
4 жыл бұрын
It sure is amazing to see how they all work together!
Your descriptions are short, sweet and pleasantly precise. Thanks.
@speedkar99
4 жыл бұрын
Thanks that's my style
Another stellar video! Thank God for this chap.
@speedkar99
4 жыл бұрын
You are welcome! Thanks for the compliment
Great video! Appreciate your wife and your brother providing tools to make this so successful! It is really teamwork!
You are the most excellent teacher imaginable!!! Just wonderful stuff!!!
awesome information thank your detailed explanation bro
@speedkar99
5 жыл бұрын
You are welcome!
Awesome as always!
@speedkar99
4 жыл бұрын
Thank you
Great. Knowledgeable and to the point. No theatrics and or trying to be movie director.
@speedkar99
2 жыл бұрын
That's my style. Thanks
Simply. Awesome description. It has cleared my all queries.
@speedkar99
4 жыл бұрын
I'm glad it helped you understand the fuel and ignition systems...often overlooked in cars!
Your presentations are top notch!
@speedkar99
4 жыл бұрын
Thank you!
Man, you are great. Are you willing to address fasteners in automotive applications someday? Especially about classes like for metric 8.8, 10.9, 12.9. I'd love it.
@speedkar99
5 жыл бұрын
Good topic. I'll keep it in mind, alongside automotive wiring
@SE45CX
5 жыл бұрын
@@speedkar99 Great, wiring is indeed also interesting. Like proper copper area for current rating, insulation. connectors. Various shielding for heat and mechanical stress.... enough details to worry about.
Great stuff from a great guy
First time here but definitely staying lol, love how detailed the tutorial is 👍🏼👍🏼
Awesome as always ! May god bless you man !
@speedkar99
4 жыл бұрын
Thank you
wonderful man...keep up good work!
👍👍👍 another master piece
@speedkar99
5 жыл бұрын
I'm going to have alot of master pieces in my collection haha
Excellent video. You Rock!!!
Your videos are phenomenal
Well well well !!!! Very well explained..... crystal clear !!!!! Very informative
@speedkar99
4 жыл бұрын
You are welcome
Nice explanation,easy to understand bro
You’re a very good lecturer I would have had A+ if you were my teacher:) keep up the good work as always. I remember getting hit with some voltage with a defective spark plug leads.
@speedkar99
4 жыл бұрын
Thanks bro One day I'll be a teacher, who knows
I love the way you explain everything.. Easy to understand & without undue prolongation..thanks for your great videos👍👍
@speedkar99
2 жыл бұрын
Welcome!
Great content as always!
@speedkar99
4 жыл бұрын
Thanks Jesse
Thanks a lot and appreciate your hard work to explain us the things that even teachers forget to teach us. Lots of love from India 🇮🇳 keep growing.
@speedkar99
5 жыл бұрын
I'm happy you can learn something from what I've learned taking this car apart. It's probably the best way to absorb and understand...it's not easy teaching this on a blackboard
Best explaination ever..
... You lost me at "today"... jk, this is a GREAT video! Very thorough, and concise with a dab of humor. Thank you for sharing!
@speedkar99
4 жыл бұрын
You are welcome!
This channel is gold
@speedkar99
4 жыл бұрын
Yay a gold mine!
Bravo...Great work man....keep it up
another educational video, thanx for such efforts
@speedkar99
4 жыл бұрын
You are welcome!
as always very educative. Regards
I'm looking forward to the VVT video. Well done on this one!
@speedkar99
4 жыл бұрын
Thanks! I already have a VVT-i video from the Corolla if you want to learn more!
very good explanation
@speedkar99
4 жыл бұрын
Thank you!
Yes thanks you have opened my eyes to these types of systems.older fuel injection systems were way complicated. Even though I'm sure you would be able to explain it in a simple term.lol .thanks again.
@speedkar99
2 жыл бұрын
You mean carburetor fuel injection?
@fox2ist
2 жыл бұрын
@@speedkar99 I have a Renault megane scenic mk2 1.6 16v but I'm having problems with the fueling. I'm sure it's the petrol pump as the car would loose power after a long ride forcing me to take my foot off the accelerator and wait for it to get pressure for me to go again.(petrol pump probably gets to tired).
Thank you a lots
Amazing toothbrush pointer !! Thnx for video !!
@speedkar99
4 жыл бұрын
You are welcome. The teach-brush lives it's legend
A duel toothbrush video. Nice!!! Another great explanation.
@speedkar99
4 жыл бұрын
Sharp eyes
Good stuff !! I like how he went from using his brothers underwear and toothbrush in past videos , now is using his wife’s shirt and her charcoal toothbrush. You got to Love it !!
@speedkar99
Жыл бұрын
Yep! Married life
Great job
@speedkar99
4 жыл бұрын
Thanks
Many thanks to you.
@speedkar99
4 жыл бұрын
You are welcome
well done!
@speedkar99
4 жыл бұрын
Thanks
I bet u could design an engine that would have some roar! Nice job
@speedkar99
4 жыл бұрын
Thanks. Roarrr!
Excelente!!!...
Wow!!!! 😍😍😍😍😍 I love you man!!❤
@speedkar99
2 жыл бұрын
I love me too
thank you
Superb
Great explanation and video. But the info on the spark plug is not correct. The longer the insulation of the spark plug, the hotter the plug and of course the shorter has the opposite. The shorter the insulation protrusion means the cylinder head can take more heat away from the plug nose and electrodes. The longer protrusion has the opposite effect, there is more insulation that is exposed to the combustion gasses and is not dissipated by the cylinder head therefore the tip stays hotter. And of course the best plug to use is the coldest plug that still has enough temperature to clean the firing end for reliable and consistent firing. Also just as a side note, the temperature range of a plug has noting to do with the engine running temperature. The back of the typical NGK spark plug catalogue has the best description on how and why spark plugs work, specifically the temperature. Its a good read
@speedkar99
5 жыл бұрын
Thanks for the info. In my video I meant to refer to the thickness of the insulation around the electrode and not it's length.
This guy is real Pro
@speedkar99
3 жыл бұрын
Thanks
Great video sir. Can you please please make a 4 part series going into detail on how to replace and entire ac system?!?! Compressor, hoses, condenser, ect? Of course u can put a warning message explaining that its for entertainment purposes only to cya.
@speedkar99
4 жыл бұрын
I'll keep that in mind
Thank you.
@speedkar99
4 жыл бұрын
You are welcome!
God I love this channel
@speedkar99
4 жыл бұрын
Awesome!
Amazing. Absolutely amazing. Also, my brothers underwear was hilarious
@joeysirb8394
3 жыл бұрын
Oh hi
Great video,can you break down a Hall effect crank sensor operation for me,like 5 volts and basic ground.what I don't understand is where the volts go and how the signal wire comes into play etc....
Best on KZread
Nailed it!
@speedkar99
4 жыл бұрын
Thank you
Love the vids! Where do you get all your vehicles to take apart and destroy for the sake of knowledge!?? Its much appreciated and preferred over my own vehicle sacrificed lol
thanks
@speedkar99
4 жыл бұрын
You are welcome
It's good job from great teacher May be next one electric window
@speedkar99
4 жыл бұрын
Yep that's on my list of things to cover..
Thala super teach👌👌👏👏👏
@speedkar99
4 жыл бұрын
Super teacher 😁
@vasanthraj6895
4 жыл бұрын
@@speedkar99 sir please I am your's grade 1 student👨🔧👨🔧👨🔧👨🔧
Man you could be a mechanic teacher. Fluency in your speech easy to understand
I like to imagine that you source your vehicles for these videos in a similar way to how you obtain your rags. Just break into random peoples cars and tear them apart right in their driveways. 😆
@speedkar99
4 жыл бұрын
Haha I just buy them for a few hundred and get all the parts I need in one car...
Man, you are amazing, i ask Allah protect you and help you 👍🍟🍔🍮🏆🏆🏆🌟🌟🌟🌟🌟
@speedkar99
4 жыл бұрын
Thanks
Thanx bro
@speedkar99
5 жыл бұрын
Welcome
@mohabdallah992
5 жыл бұрын
speedkar99 your videos very useful very smart and short you deserve 125 million subscribers ❤️👌✋🏼
12:42 Most Canadians deny we say "aboot" lol j/k Great video.
@speedkar99
4 жыл бұрын
Good catch haha
Can you explained how dual vvti adjust the in ex cam timing?
@speedkar99
4 жыл бұрын
I'll keep that in mind for the vvt video
Do you have a link for that diagram ? I’d like to print that 😅
Just love to see whats inside the coil and injector. Ya see if I can find a charcoal toothbrush.
@speedkar99
4 жыл бұрын
Thanks, it's not something seen that often so this is here to expose it
Excellent explanation! I have a 2002 Honda Accord V6 with ignition coils. It's having misfiring issues. Can you confirm that my engine does not have a distributor? I thought I heard you say that in the beginning. Thanks.
@speedkar99
3 жыл бұрын
The J-series is coil on plug
@expsterm1
3 жыл бұрын
@@speedkar99 So no distribution?
Great explanation. Is that a VQ40?
@speedkar99
4 жыл бұрын
VQ35
Bro, I like how you use that toothbrush for everything lol
@speedkar99
4 жыл бұрын
It's my side kick
please make a video on cooling system
@speedkar99
4 жыл бұрын
I've already filmed it, I have to edit and it'll be up soon!
Many toothbrushes were sacrificed in the making of this video.
@speedkar99
3 жыл бұрын
Many many toothbrushes. RIP
I think Oral B should sponsor your channel, every time I watch a video I remenber to clean my teeth.
@speedkar99
4 жыл бұрын
A sponsership would be awesome but I dont think they would want "other uses for toothbrushes"
Thank you proffesor Ecxellent explantion by you of any car system But please try to be a bit slower while teaching Thank you!
On this engine for most power its aprox 13.5:1 target AFR. When tuning this engine it likes to run a little rich.
@speedkar99
5 жыл бұрын
Good to know. Do you have a VQ35?
@pospc2
5 жыл бұрын
@@speedkar99 sure do. Its a g35 with poncams,HR pistons, rev up rods and some port work to heads and intake mani. Along with other boltons.
You should start selling toothbrushes with your logo. I'll buy them for sure!
@speedkar99
4 жыл бұрын
That would be interesting
Here comes another toothbrush, belongs to unknown.
@speedkar99
5 жыл бұрын
Haha no comment 🤐
Can you help me I have a 04 Volvo C70 my coils aren’t getting a spark can you tell me why
@speedkar99
4 жыл бұрын
ECU? Do you have an engine immobilzer?
@baltimorelife7229
4 жыл бұрын
No
Plz a video on App sensor
@speedkar99
2 жыл бұрын
App sensor?
@satagamery9951
2 жыл бұрын
@@speedkar99 yes. It's work and diagram
Brother's old underwear was an unexpected cameo in the tune of events...@6:10
👍👍 👏👏👏👏👏👏👏
What is PCV valve and what is its function
@speedkar99
4 жыл бұрын
Positive crankcase ventilation It relieves pressure from the area below the pistons and sends it back into the intake.
Brother was forgiving but wives are not.☠☠☠
@speedkar99
5 жыл бұрын
True haha
@livewireOrourke
4 жыл бұрын
Lol. They will forgive...... however you will hear about it for years.
please take a fuse box apart and show us how that works ?
@speedkar99
4 жыл бұрын
Good video idea! Thanks
i think that engine is a vq35 am i correct?
@speedkar99
4 жыл бұрын
Yes
@cyanide7167
4 жыл бұрын
@@speedkar99 what was wrong with that specific engine? just curious.
"My toothbrush here, it's not dirty it's just charcoal"
Mind blown!!! I cant believe your bro wakes up to missing tooth brushes and missing underwear. Now your poor wife has to hide her blouse and toothbrush as well in a vault to keep it away from you 🤣
@speedkar99
4 жыл бұрын
They can't hide anything from meeee
is that your brothers car engine again?
@speedkar99
4 жыл бұрын
My g35
how to tell how much power of standard ignition coil or aftermarket