Light throttle jerking issues
Hey guys, had my RB3025 neo tuned and runs great except for on very light throttle where it starts jerking. I've had the tuner look at the low load points and says the pwr fc is old model and most likely the problem. I'm gonna have a road tune done also to try find out more but can anyone suggest anything else that can cause jerking.
So some stairs of setup
2530neo, 3076, 44mm tial, z32 on 4inch pipe, gfb recirc BOV set soft, pwr fc, avcr, 1000cc experts, 416 walbro, stock reg,
One thought was I had to weld up the r33 throttle vacuum hole as it wasn't compatible with the neo mani.. not sure how important that is..