Controllers and methods for a fuel injected internal combustion engine

A method of testing the emissions output of an internal combustion engine (ICE) having a fuel injector, comprising:

• setting a second value temperature by a user using a user adjustable value controller;
• sensing a temperature of the ICE while the ICE is running, wherein the temperature is a first value and wherein the fuel injector is configured to be controlled by the temperature of the ICE;
• controlling the fuel injector by substituting the first value with the second value when the first value reaches a predetermined value, wherein an injector spray valve of the fuel injector is maintained in an open position for a time sufficient to deliver an amount of fuel to the ICE based on the second value, and wherein the second value does not correspond to the temperature of the ICE while the ICE is running;
• and
• measuring the emissions of the ICE after the controlling of the fuel injector.

A method of controlling the operation of a fuel injector of an internal combustion engine (ICE) while the ICE is running, comprising:

• sensing a temperature of the ICE while the ICE is running using a temperature sensor;
• transmitting temperature information from the temperature sensor to a first controller;
• controlling the operation of the fuel injector by the first controller in response to the temperature information, wherein an injector spray valve of the fuel injector is maintained in an open position for a time sufficient to deliver an amount of fuel to the ICE based on the temperature information;
• preventing the transmitting of the temperature information from the temperature sensor to the first controller when the temperature of the ICE reaches a predetermined value, which is user adjustable by a controller;
• transmitting substitute information from a second controller to the first controller when the temperature of the ICE reaches the predetermined value;
• and
• controlling the operation of the fuel injector by the first controller in response to the substitute information, wherein an injector spray valve of the fuel injector is maintained in an open position for a time sufficient to deliver an amount of fuel to the ICE based on the substitute information.

A device to control an internal combustion engine (ICE) having comprising:

• a fuel injector, a temperature sensor, and a first controller,
• wherein the temperature sensor is configured to generate a plurality of electrical signals that correspond to a plurality of temperatures of the ICE while the ICE is running,
• wherein the first controller is configured to receive the plurality of electrical signals and to control the operation of the fuel injector in response to the plurality of electrical signals,
• the device having a memory and a processor coupled to the memory and operable to receive from the temperature sensor information corresponding to the temperature of the ICE and to transmit user adjustable substitute temperature information to the first controller when the temperature of the ICE is within a predetermined range of the plurality of temperatures of the ICE,
• wherein an injector spray valve of the fuel injector is maintained in an open position for a time sufficient to deliver an amount of fuel to the ICE based on the substitute temperature information, wherein the substitute temperature information corresponds to a temperature that is not equal to the temperature of the ICE when the substitute temperature information is being transmitted to the first controller.