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The unit injectors are located under the valve cover, mounted in the cylinder head.
The engine’s fuel requirement is analyzed up to 100 times per second (depending on engine rpm). The amount of fuel injected into the engine and the injec- tion timing are electronically controlled via the unit in- jector’s solenoid controlled fuel valves. This means that the engine always receives the correct volume of fuel in all operating conditions, which offers lower fuel consumption, minimal exhaust emissions etc.