So a bit of an update with the running issue i have been having with the car, was lookin at the car with a mate tonight and started messing with it and checking wiring and spotted that when the car was idling the light behind the odometer/speedo would stay on but when the car started moving it would start flashing, so we jacked the car and drove it through the gears the light would flash when the speedo started moving and stop when the speedo reached 0.
We disconnected the speed sensor plug from the gearbox and drove it then and.....nothing the car drove perfect, no hesitation or anything and the light was off.
Also when driving the car seemed to hit rev limiter at about 6800k but seemed to be hitting both vvl activation points so possibly faulty cluster.
So we came to the conclusion that there must be something wrong with the cluster/speedo wiring and that it would intermittently cut ignition power when moving and that is what was causing the car to cut and bog down!? Very strange.