camshaft postion sensor bank 2 circut A code po345 and 349
 

i just replaced the timing chain guides and tentioners and now the code p0345 and p0349 come up and it is running rough, is it possiable that it is out of time by a tooth? i have replkaced the sensor and also replaced the crankshaft position sensor as well and no change. also checked the pcm and all is good. does someone have an answer for me? thank you.