I dont know who'd dislike this, if you understand this you could tune EFI cars lol. (there's alot more, but this is one of the most fundamental theory one'd have to understand).
ppl are still stuck on carburator days, plug this and car go faster, it aint that anymore. you got to work with this.
At idle the throttle is closed and there is very little fuel being injected. At higher rpms the throttle plate is open and larger amounts of air and fuel are being delivered, reducing the effect that the vacuum leak has at idle. It's all about the proportion of the leak, you see. I hope this helps.
Why does a vacuum leak cause idle to fuel trims (short and long) to be high but "ok" at any throttle. I was told the answer will make me beat my head on the wall for not being able to answer it. He said it was a simple concept.
Interesting how there are different perspectives - some folks like it, some don't. My students learned a lot - they're the ones I'm getting paid to teach.... LOL
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I dont know who'd dislike this, if you understand this you could tune EFI cars lol. (there's alot more, but this is one of the most fundamental theory one'd have to understand).
ppl are still stuck on carburator days, plug this and car go faster, it aint that anymore. you got to work with this.
again, awesome video.
zorokakashi 1 month ago in playlist Liked videos
Comment removed
zorokakashi 1 month ago in playlist Liked videos
At idle the throttle is closed and there is very little fuel being injected. At higher rpms the throttle plate is open and larger amounts of air and fuel are being delivered, reducing the effect that the vacuum leak has at idle. It's all about the proportion of the leak, you see. I hope this helps.
McCuistian 2 months ago
Why does a vacuum leak cause idle to fuel trims (short and long) to be high but "ok" at any throttle. I was told the answer will make me beat my head on the wall for not being able to answer it. He said it was a simple concept.
Shackelchevy77 2 months ago
Thanks for that very confusing comment :)
McCuistian 3 months ago
oxygen sensors should be relabled "lack of oxygen sensors"
The reason being it only produces an output when there is an absence of oxygen!!
Lean means "rich" rich with oxygen.Rich means "lean"lean with oxygen
Hope this helps
fieldsofomagh 3 months ago
@fieldsofomagh This is very helpful. Although i know what the logic is behind oxygen sensors I was not able to condense it so precisely
nesgael1 3 months ago in playlist Mccustian
FYI to new guys, closed loop has a feedback. open loop has none, strictly base on set point and process
zorokakashi 4 months ago
If was younger, still have money(working now lol, ironic isnt it) I'd attend your class Mr.
zorokakashi 4 months ago
Interesting how there are different perspectives - some folks like it, some don't. My students learned a lot - they're the ones I'm getting paid to teach.... LOL
McCuistian 5 months ago
Very good video will help with everyday work at shop
02lowrider62 5 months ago
more complicated then it needs to be
jayguy173 5 months ago
Thanks!!! I try.
McCuistian 6 months ago
I get alot out of these videos, great work.
assassinscov 6 months ago
Great stuff. I play your videos before I go to bed. Thanks a million.
frogca 8 months ago
Thanks... I try.
McCuistian 9 months ago
Nicely put!!!
regnice01 9 months ago
Nicely put!!!
regnice01 9 months ago