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Smog help needed for '86 300E
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10-14-2003, 04:12 PM
Duke2.6
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Join Date: Mar 2003
Location: Southern California
Posts: 2,278
So you're saying that the pump continues to pump air, but a switching valve diverts the air and dumps it overboard rather than injecting into the exhaust once the O2 sensor is hot enough to enable closed loop operation(?).
Duke
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