Question about 1994 Mercury Cougar
Went to use a diagnostic scanner to see if it detected a problem, but couldn't find the receptacle under the drivers side dash or under the hood. Does it even have one? This car is only driven around 800 miles a year and has always passed the emissions check before now. Readings: IDLE SPEED CO = 6.18%, HIGH SPEED CO = 5.94%, IDLE SPEED HC = 960, HIGH SPEED HC = 282. This is above the limits. Car appears to be running great and all the lines appear to be connected. Automatic choke works fine when cold then kicks down to idle without any problem. Could the EGR Valve or Catalytic Converter have a problem?
You should not have to worry about it with the age of your car. nothing is wrong take it somewhere else to be tested
Posted on Oct 04, 2013
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Posted on Jan 02, 2017
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When the service engine soon light (Also called the check engine light) is turned on this is to alert you to the fact that powertrain control module (computer) has detected a failure somewhere in the systems it controls, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.
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