Injector Shutoff

[YarisOwnersDad]

Originally Posted by minnyar

FWIW, I unplugged three plug wires on a rental Taurus once, it drove fine, probably used less gas as well. Would I do this to my own car, HELL NO!

How could it use less gas just because the spark plug wires were disconnected? The fuel would still be going into the cylinders, but it would be unburned and would contribute nothing to the energy to propel the car.

[minnyar]

Originally Posted by YarisOwnersDad

How could it use less gas just because the spark plug wires were disconnected? The fuel would still be going into the cylinders, but it would be unburned and would contribute nothing to the energy to propel the car.

I just assume it would use less gas as the engine would not rev beyond 2000ish rpm. Up to that point it probably uses just as much as normal.

PS: Don't EVER buy a used rental car.

[127.0.0.1]

Originally Posted by minnyar

PS: Don't EVER buy a used rental car.

this.

I have abused the hell out of rentals. positively slamming the transmission
into gears that should not be used in the direction I was headed.

I ain't proud of it...I am just saying I, and others, have done such things.

it's guaranteed that any used rental has had one or more abusers drive it.

[Yaris Hilton]

Shutting off the fuel to one cylinder, while letting it still breathe air, will throw off the mixture feedback from the oxygen sensor. The car will go into "limp mode."

Unplugging spark plug wires while letting fuel flow through wastes fuel. The remaining cylinder has to work harder to make the car go, and the other ones get the increased fuel flow, too.