owners manual Mitsubishi Eclipse

owners manual Mitsubishi Eclipse - year of production: 1995, 1996, 1997, 1998, 1999 - Mitsubishi Eclipse II technical information manual EN

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text version of content this owner's manual page from owners manual to the vehicle Mitsubishi Eclipse, year of production 1995 - 1999:

ENGINE - Control System I-43 Operation The Power-train Control Module (PCM) varies theCoolant Temperature (ECT) Sensor, Intake Air Tem- ii perature (IAT) Sensor. Vehicle Speed Sensor (VSS) pulse width of the fuel injectors to provide precise and battery voltage all have varying levels of influ- control of the air/fuel mixture. Wider pulse widths ence on pulse width, depending on the circum- increase the volume of fuel delivered to the cylinders. stances. The PCM uses the input from a number of sensors in its attempt to reach and maintain this air/fuel ratio. Manifold Absolute Pressure (MAP), and theAs noted earlier, the system uses two oxygen sen- sors both of which monitor the oxygen content of 02 sensor have the greatest influence (authority) the combustion byproducts on their way out of the over injector pulse width. Other inputs such as the engine as exhaust. Only the upstream sensor has Throttle Position Sensor (TPS), engine RPM, Engine authority over fuel injector pulse width. Upstream 02 Downstream 02 sensor sensor _. Exhaust gas AFU0092 If a large amount of oxygen remains following the Upstream 02 sensor feedback to the PCM is used to fine tune injector pulse width to maintain stoichio- combustion process, this sensor produces a low voltage. This indicates a lean condition caused bymetric and meet emission standards. It can increase a ratio greater than stoichiometric. Little oxygenor decrease injector pulse width by as much as 50%. Pulse width is calculated from the data sup- in the exhaust allows the sensor to produce a higher voltage, indicating a rich condition where the air/fuelplied from the MAP, TPS, ECT, IAT, upstream 02 ratio is less than stoich. sensor, battery voltage, RPM and VSS.

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year of production from: 1995

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