I've been having a hesitation issue, i replaced the knock sensor yesterday. I know it didn't have anything to do with my hesitation but I saw the wires were no longer connected to the sensor. everything is back together and now the second I start moving and give it gas the car bucks so hard your head goes for the windshield and I can hear the motor bounce forward. When this happens my lights on the dash flash like the car died. Once I let off the gas it goes back to normal.

I have taken the top end back apart to see if I've missed anything and found nothing wrong. My friend has a known good ecu I installed that no change. I do have a bad battery I have to jump it for the time being... I don't know if that would cause any issue though.?

Things I have done since I bought the car, I added braided fuel lines with SX performance filter and FPR. I added PTE 550 injectors. I put in spark plugs I think they are bkr7e (I'll check for sure tomorrow).

I bought the car with 15g turbos, safc ii, blitz EBC, wideband.

Seems like everything I do makes it worse, now I can't even get it down the road.