The definition of a rule is  an official regulation, code of regulations or set practice. An example of a rule is that a red light means stop. An example of a rule is an employer demanding their employees arrive at 8am.
New injectors cost anywhere from $80-$120 apiece, making their replacement a somewhat pricey endeavor. There are three types of injector leaks-it can leak fuel into the manifold from the nozzle, it can leak fuel into the engine compartment from the fuel rail, and it can leak air (vacuum leak) from the manifold.
BMW Z3 Fuel Injector Replacement Cost Know what price you should pay to get your vehicle fixed. The average cost for a BMW Z3 Fuel Injector Replacement is between $1069 and $1259. Labor costs are estimated between $70 and $117 while parts are priced between $999 and $1142. Estimate does not include taxes and fees.