96 Buick LeSabre shows a code of 1406. It said EGR value printel position
was 10% of the expected position. Probable cause 1. Failed EGR valve 2. Open
or short circuit condition.
The check engine light went out and has not come back on. My thinking is
this eliminates the open or short circuit. Someone told me I should take the
EGR off and clean it would carb cleaner.
Give it a try but usually this indicates a bad egr.
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Very true, and the funny part of those Linear EGR valve failures is
it isn't the valve part that fails but the Position Sensor (usually
the resistance element itself goes bad, a similar condition to the oil
pressure gauge sensors in '80s~90s GM cars). I've replaced a few of
those including just recently the one in my personal '94 Regal with a
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