New V8 driver needs help... Part Two

Hello. It was at ATU now, but the ATF stand is quite sufficient. The leakage of the gearbox must be repaired during repair. Then I also drove there and when the good boss did a test drive, the car of course did not jerk anymore. He said it could also be the Lambda probes. So I'm going back to ATU, but they're running. Today the jerking reappeared. It's when I'm off the gas, or I'm just driving a little gas. The car then drives as if someone were pulling it back, holding it, and sometimes even a braking sensation. Sometimes the speed also goes down a bit for a fraction of seconds. Can also do this with ignition, filter, etc. I'm sorry, but I'm not sure I'm gonna be busy. Thank you in advance... Kai kaikremer@hotmail.com