Checked voltages. Max when hot 5volts. Cleared code. After two weeks code reappears. Checked grounds. Checked voltage again. Still max 5volts when hot. Replaced sensor. Cleared code again. Went another two weeks code reappears.
Seems to happen after car sits for a while and the ambient air temp drops to below 60 degrees. Is it possible that the alternator regulator spikes at startup causing this issue?
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