Hello ,having a problem with my truck yesterday...Ran fine all day,starting and stopping. Park in the street, went to move it later, just cranks and cranks .Disconnected battery's, let it sit overnight, Starting right up this morning..........Only code i ever get is PO1694.What.is strange, Does out every April in warm months, comes back in October in the cold, Done this for three years I've had it...
thinking ECM maybe?