help. code p0340

here it is...sory for my english . i will try to do my best..
last year (2008) my car dodge neon srt-4 2004 had a chek engine. p0340 . I repair the trouble but it does change.. cut off at 2000 2500 rpm i change the wiring, the connector, chek the timing belt, change the cam sensor and the crank sensor..
the batterie is in my trunk with a 4gages wiring. and all the summer the car was at the garage to try to find the trouble..
last week I go ton my car storage and complet ton instal my audio system. I start the car with my old batterie and an other batterie to get power to start the engine..
the car were running great but when I start the audio systeme to enjoy the sound the chek engine light on... the car were start but not moving ..

can it be cause by the old batterie , the same that I used last year (2008)
what else can it be..... need help please.....

the trouble apear when I instal the audio systeme last year.. 1 week after... the audio systeme were instal by proffesionel... inspected two time to be sure its not the connection the trouble..

thx

If the code is still there then either you're new sensors are no good which is common with aftermarket cam and crank sensors on Dodges, the circuit is still open or shortted or the timing belt is not aligned correctly!

we change the sensor to time to make sure and the timing is suposed to be good
the mecanic man told me..

well then I guess it needs a new pcm then