Quote:
Originally Posted by EdKiefer
I don't follow why you think O2 would dump more fuel in as long as no air is being drawn in. O2 don't know or care if its 2 ,4 ,6 or 8 cylinder, its the % that it reads not quantity . now if intake valve was open it be different story, it would "try" and compensate to keep 14.7
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What i'm referring to is a vehicle running on half its cylinders due to injectors being disabled. If there is no gas going in and no fuel being burned then all that atmospere being pulled into the "dead" cylinders will be dumped out the exhaust. This will cause a high 02 content.
Sure, if the intake valve could be made to stay closed it would solve the problem, but that would be a bit complicated I believe.