Im having this problem when i start my G35 03 Sedan and try to take off it automatically locks the brakes so its like its stuttering. I have to move my steering wheel all the way to the left for it to turn the SLIP & VDS light on for me to be able to drive the car. In doing so im noticing some power and torque missing from a full stop. I can step the pedal all the way to the floor but it wont take off as a 3.5 Engine should. This is my First G series infiniti so im not quite familiar w it.

 

Is the SES light on as well? Even if it's not use an OBDII scanner and pull any current or pending trouble code/s. If you don't have access to this take it to any of the major auto parts stores and have them read the codes for you. Hopefully you'll get a code to come up that will point you to a specific part of the car to repair. Then check back in here when you have them accessible.

 

Last code it gave me was for a knock sensor then i swapped the motor to a lower mileage motor. Still nothing. I'm thinking maybe a angle steering sensor? 80% of ppl on here say that was there issue.

 

I don't know a whole lot about said sensor, but steering angle sensor sounds like a good place to start if the car only lets you drive after cranking the wheel. Even so, it sounds like power is down; have you checked your ATF lately? If your transmission is older/worn, it can have some issues like the symptoms you're describing.