P0344 Ford - mustang gt

Question

getting codes p0340, p0344, p0340pd, p0344pd. lost power during driving. Car did not have electrical power to start the engine. Had to jump off. car would die when the jumper cables were removed. finally got the car to run and drove home. replaced the camshaft position sensor. after a couple of hours the check engine light came back on. same codes as before. checked the alternator output which was 100%. checked battery which was 100%. What could be the problem(s)?

Answer 1

P0344 / P0340 Camshaft position sensor A circuit intermittent

You have charging system problem.  If one of the diode of the alternator is bad , or a open phase in the alternator you definetly will set a P0344 and a P0340 code condition. Replacing the cam position and you still have the code, Replace the alternator. Ford also put out a TSB about this condition TSB # 06-19-12 This is about a charging system that causes P0340 and P0344 to set.