Question about 1992 Mercury Topaz
We have a 1992 mercury topaz and these two codes keep comeing up what are they and how do you fix them?
31 canister or egr valve control system,63 throttle position sensor or circuit,for egr inspect visually hoses elect. plug at egr solenoids after that you might want to buy a repair manual because theres quite a few test to do.for tps check unplug connector at sensor connect 1probe of dig.ohmmeter to center terminal the other on either side move throttle slowly,resistance should vary slowly,if its erratic or none change tps ,voltage at plug not sure,think its 5vlt
Posted on Feb 26, 2009
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Posted on Jan 02, 2017
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