ok so i posted on here before about ths problem and i fixed a few things on the car but i still havent found the cause of it. my problem is that when i am at full throttle the car starts to buck hard and then come back to acceleration. usually this happens only in the mid toupper rpms.now it is starting to do it at part throttle at anything near or over 3k rpm's. i replaced the fuel pump and have good pressure. the car is throwing no code except for the battery being unhooked within 50 cycles. does anybody have any kinda of suggestion on what to check next? im lost

 

i would check the throttle hook up just to see if thats messed up

 

do you have an alarm? try unplugging the box since that connects to the ignition system. a bad alarm can make the engine cut out. the alarm is usually somewhere down below the dash near the steering column tucked up in there. you may think you have a bad pcm and all it is is a bad alarm shorting out.