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Old 05-04-2019, 05:28 AM   #2 (permalink)
In the fasting lane
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Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
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Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 53.55 mpg (US)

It - '09 Hyundai I10 Active Cool
Team Hyundai
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The 'dead' cylinder would pump fresh air into the exhaust, so the lambda sensor will sense an overage of oxygen and the EFI computer will try to compensate by injecting extra fuel into the other cylinders.
So just disconnecting the injector is no good.

However, if you close off the intake port of the dead cylinder that will be drawing a vacuum instead of pumping air. That way it has as little friction as possible. Then it would run more or less smoothly.
The vacuum will draw some oil into the cylinder head. Maybe it seeps back into the oil pan when the engine is at rest, otherwise the buildup may cause trouble.
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.17 Gmeter or 0.1 Mmile.

It always takes longer than you expect, even when you take into account Hofstadter's Law.

When I drive a car I'm a driver. When I'm sitting on my couch I'm a biker.
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