Its an all wheel drive 3.5 v6 I get the following error readings p0325 knock sensor 1 circuit bank one , also p1260 theft detector engine disable and uo100 lost communication with engine control module / power control module A The car dies when driving and sometimes don’t start its completely dead P1260 theft detector engine disable disable ? is this the problem and how do I fix it .
Take it to a VERY well rated mechanic Bring lots money. It is going to take some time to find all the causes for these things (multiple things!) and that’s gonna cost you before repairs can be made.