About 30 years ago, you had banked injected where fuel was dumped into the left or right side of the intake manifold. Then came sequential injection where the injector is next to intake valve, squirting when the valve opens. I think there would be reasonable isolation between cylinders.
It's bad in the sense that it will burn up the converter but... that might be an advantage if you have a gunked-up converter. At least if it doesn't explode.
--scott
I was also wondering how the fuel could be shut off to any cylinder since very few normal passenger car engines inject into the cylinder itself.
Your Sienna is injecting into the intake of each cylinder, so the computer has fairly independent control over cylinders. But there is still a very tiny amount of mixing in the manifold.
Cars that have direct injection (which include a lot of newer BMWs) inject directly into the cylinder rather than the intake. This requires much more rugged injectors and much more expensive ones.
--scott
More accurate fuel distribution between cylinders.
____ Xeno
On Sun, 23 Apr 2023 23:00:56 +0530, mike posted for all of us to digest...
Sni9pped for your pleasure!
Is that you Arlen?
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