changed cam and crank sensorm now have po339 any ideas

Question

03 neon 2,0 had codes for cmp sensor, car running fine then loss of power shut off,let sit start back up run and drive ok then does it again. I changed cam and crank sensor , reset computor, same thing. now i have po339, I have checked cleaned and reconnected everthing.where do i go from here Thank you

Answer 1

P0339 Crankshaft position sensor intermittent

P0440 General EVAP system failure

For P0339 you have a intermittent glitch with the crankshaft positions sensor or the camshaft position sensor, You need to use a voltmeter or a labscope to measure the signal circuit for its 5 volt reference. If you have a intermittent lose with the signal reference from either sensor you will need a PCM