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Old 09-18-2010, 03:06 AM   #44 (permalink)
saand
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Join Date: Jul 2010
Location: Melbourne, Australia
Posts: 236

bugler - '91 Mazda 626
90 day: 35.89 mpg (US)
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Frank agreed the o2 sensor would work fine if 2 cylinders were completely disabled.

still looking at other options which may still involve the deactivated cylinder pumping but not doing useful work. in which case the o2 would flow through the cylinder. The only reason to go down this route is if going to 2 cylinders causes the engine to be unbalanced or if i try deactivating cylinders on the go.
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