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 Svstem Operation Once it reaches its operating temperature of 572”circuit, or does not function at all, prior to OBD to 662”F, the sensor generates a voltage inverselyII, it was impossible to identify sluggish or marginal proportional to the amount of oxygen in the exhaust. sensors. This information is used by the PCM to calculate A slow response rate or reduced voltage output the fuel injector pulse width necessary to provide are all signs of an improperly operating oxygen sen- the critical 14.7 to 1 air/fuel ratio (stoichiometric). A properly operating sensor must not only be ablesor. This could mean longer instances of combustion of less than optimum air/fuel mixtures. This can to generate an output voltage across its operating significantly increase emissions. range of 0 to 1 volt as it is exposed to different The 02 sensor must have a voltage output of greater 02 levels, it also must be able to detect these changes quickly. To detect a shift in the air/fuelthan .67 volt in order to pass the test. It must also switch more times over a 120 second period than mixture (lean or rich) the output voltage must change a given threshold (to demonstrate quick response) beyond a threshold value. A malfunctioning sensor or produce a given number of steep slope switches could have difficulty changing beyond the threshold value. (demonstrating dynamic range and quick response) over the same time period. Data is not stored unless While there are existing tests that determine if an idle time exceeds 10 seconds. 02 sensor is shorted to voltage, contains an open Front 02 High switching frequency fast response E Front O2 ’ .Q 2 I .- WE Low switching frequency Trigger 1.5 x STD slow response Switching frequency AFUOO88

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year of production from: 1995

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