Fuel Injector: Application and ID

D0HC (LLO) and S0HC (L24) fuel injectors are not interchangeable. Verify that the correct fuel injectors are installed in the fuel rail. The fuel injectors are identified by a color coded plastic ring located near the bottom of the fuel injector. The D0HC (LLO) fuel injector is identified by a pink O-Ring that mates to the [1][2]intake manifold.