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Fuel injectors are
controlled by electronic pulses from the vehicle's
electronic control module. Injector connectors secure the
signal wires to each injector and make the electrical
contact. Just like everything else under the hood, they are
susceptible to wear and tear. Being very close to the
cylinders, injector connectors are subjected to significant
vibration, temperature, and chemical exposure. Over time the
connection could become corroded or loose, and the fuel
signals from the ECM may become weak or might not reliably
get through to the injector.
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