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Re: Next time you are free and the car is at ambient temp get
Posted by aero guy (more from aero guy) on Wed, 4 Jul 2001 01:25:01
In Reply to: Ongoing idle problem, John, Tue, 3 Jul 2001 08:25:48
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your handy dandy VOM and check the reading at the temp sensor to the computer. it is between #2 and 3 cylinder the reading is a function of the ambient. lets just say your temp is between 20 and 40 deg C the resistance should be 1.0 and 2.9K ohms then heat up the car and it should go down to between 295 and 425 ohms. the curve isn't linear but close enough for testing purposes. You can disconnect this and try to run the car if it acts the same pretty good bet the temp sender is bad the roughness is indicated by a defectiv sensor because the computer thinks the car is red hot and enrichens the fuel flow initially then leans it out to the default condition
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