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Trouble codes P1582 (idle adaptation at limit) and P0137 (oxygen sensor circuit, low voltage. post-converter sensor) keep coming up after clearing codes. Post cat conv O2 sensor is brand new. When codes are cleared it usually takes a couple days for the check engine light to come back on unless you turn on the a/c, which makes the light come back on regardless of how long ago the codes were cleared. What would cause these codes and what is the remedy ??
 

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5/23/10 <3
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