I have a vy ss ute ... take off and it breaks down , give it a bit more gas and it takes off like a rocket. ?.... have replaced leads n plugs n it still does it ... any ideas???
If it were electrical such as plugs and leads it would do it across the entire rev range,sounds like a fuel issue,like when its coming off idle map to part throttle.I doubt its a fuel filter problem as you say when you give it more throttle its fine but to rule that out ,how long ago was it replaced.Have a look inside the throttle body it might well be full of gum and ****.How many kays has it got on it ?
Throttle position sensor, coils... OBD2 diagnostic scanner will quickly tell you if any sensors are faulty if you can lay your hands on one.
The fuel filter was replaced about a month ago as I thought that was the problem ..... it idles fine, runs fine except for the breaking down part ... I might take it back and get a scan done on it
Yeah a scan would be the best thing to find what the issue could be.I thought it might be a vacuum hose split or has come loose causing the issue best of luck.