When we had our last meet of the year on the R75 club, a member whom attended had to change of his injectors and at the time was informed by another member to unplug the crankshaft wiring, loosen the two bolts either side of the injector and crank the car over, because it will not start due to unplugging the crankshaft plug it would pop up the injector helping it to remove easy it worked a treat, but I would be wary of trying it myself, any way good luck with your problem cheers Arctic2