How to Save Gas through Cylinder Deactivation Video

How to Save Gas by Deactivating a Cylinder

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How to Save Gas through Cylinder Deactivation -

Learn how to save gas by disconnecting a fuel line, like new cars do.

How to Save Gas through Cylinder Deactivation -

Learn how to save gas by disconnecting a fuel line, like new cars do.

Added: 10/17/08

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How to Save Gas through Cylinder Deactivation Engine Tips fuel saving tips Gas Saving Tips How to Deactivate a Car Cylinder How to Disconnect Car Fuel Line How to Save Gas jayanderson

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By: Guest 2 months ago

Nice try there, and concept is right but the execution is awfully wrong. First when you see engines that can turn one or more cylinders off, this means, the ECU on the vehicle/engine actually adjusts several sensors and input to the engine: first being, fuel pump, lowering the pressure delivered, mix sensor -an offset value is added to the calculation to avoid the ECU to adjust the mixture, IAC is adjusted to the new specification of incoming air for idling, and finally, the flashpoint is adjusted at all 3 remaining cylinders to prevent misfiring and also to eliminate the "rough" riding of the engine. Remember the computer does all of this dynamically, and by so, when you depress the gas pedal, the computer may activate the remaining cylinder to avoid excesive consuption that would come from you depressing the pedal too much to compensate for the deactivated cylinder. Also, note that with a deactivated cyl the car may be sending unburnt fuel off of the EGR and down the exhaus

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By: Guest More than a year ago

I think the test is not correct, because the fuel consumption depend on many factor such:the diver, route for test ...The cylinder deactivation only use in light load engine, here the diver use CDA in starting car(highest load engine)

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By: Guest More than a year ago

This is the stupidest thing I have ever seen! When you run on 3 cylinders without the computer to change parameters you will put more load on the motor. And guess what! You burn more fuel.

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By: Guest More than a year ago

This is the stupidest thing I have ever seen! When you run on 3 cylinders without the computer to change parameters you will put more load on the motor. And guess what! You burn more fuel.

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How to Save Gas by Deactivating a Cylinder

Many of us have heard of GM's Cylinder Deactivation. This is where cylinders can be shut off so that the engine uses less fuel. Okay, in the engine I have four fuel injectors, one of which you can see right here. What I'm going to do is unplug this. Now that it's unplugged, I'll only be feeding fuel to three cylinders. Alright, we're ready for our first test of cylinder deactivation. I'm going to start the car now and we'll see how it works. Okay. The engine is running a little rough, one cylinder less. For my efforts I was immediately rewarded with a check engine light there. But we'll continue on with the test to see how it works out. Alright, I'm noticing a slight loss in horsepower. It should be about 25% less. Hopefully, I'll get a 20% increase in gas mileage. Possibly, somebody will think of a way to get a computer so that the check engine light won't work and that I do this automatically. Okay, now the check-light was flashing off and on. And now we'll check my mileage. That was fun!

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Many of us have heard of GM's Cylinder Deactivation. This is where cylinders can be shut off so that the engine uses less fuel.

Okay, in the engine I have four fuel injectors, one of which you can see right here. What I'm going to do is unplug this. Now that it's unplugged, I'll only be feeding fuel to three cylinders.

Alright, we're ready for our first test of cylinder deactivation. I'm going to start the car now and we'll see how it works. Okay. The engine is running a little rough, one cylinder less. For my efforts I was immediately rewarded with a check engine light there. But we'll continue on with the test to see how it works out.

Alright, I'm noticing a slight loss in horsepower. It should be about 25% less. Hopefully, I'll get a 20% increase in gas mileage. Possibly, somebody will think of a way to get a computer so that the check engine light won't work and that I do this automatically.

Okay, now the check-light was flashing off and on.

And now we'll check my mileage. That was fun!

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