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Hydrocarbons were over 100 points high. what do i look for? vacuum hose leak?, change plugs....egr. which first?
3 Replies
100 PPM is not that far off. Get a complete fuel injection service & that should get the numbers down. mastertech154 is correct about having the engine throughly warmed up.
engine light not on.
being that this is an obd2 computer system , normally if there was any type of problem , the computer would turn on the check engine light.. i am not sure how they test emmissions in tn, but they should just plug into the computer and check for codes , if there are none you should have passed. if they are checking at the tailpipe , exhaust emmissions , make sure your car is up to operating temp, keep running if you are in line ,, the hotter the better , also make sure that the engine is getting hot enough, make sure the temp gauge is at least halfway up , ( meaning that make sure your thermostat is working properly..
They check it at the tailpipe. the radiator fan was running only for a few seconds. thanks for the info. i'll check the thermostat.