Quote:
Originally Posted by The Fridge
You could do it, and yes it would cut fuel to two of your cylinders but....
It would be a very unsatisfying experience and I recommend against it strongly.
-The engine would run rough.
-The power loss would be substantial, not only are you losing half your power, but your engine will still be working just as hard to pump air into and out of the two dead cylinders.
-The mixing of air from the two dead cylinders into the exhaust stream could drastically affect the readings your cars ECU gets from the sensors, causing the ECU to attempt to adjust the fuel mixture to compensate.
I'm sure some others around here can come up with more reasons why this is a bad idea.
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A search will reveal that the running-on-two-cylinders idea has been beaten to death, and that there's pretty much no practical way to do it, unless one was willing to make a custom cam, exhaust manifold, and ECU map to specifically use those dead cylinders as an air pump.
Just switching off the injectors is a sure-fire (no pun intended) way to make your car run awful, and probably get worse mpg.