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Originally Posted by crazyduetoiowa
1999 3.1 v6 78k today the service engine soon light came on.... still runs fine and I see that, that light means its emision control crap. Does anyone have any things i check my self to see if i can save a costly trip to a repair shop??? ANy ideas are great and where are the ports to add freeon to the a/c?
Thanks Derek
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It's not always an emissions problem that trips the check engine light, although they do cause most of the CEL faults. I agree w/the post above, although I just did this myself a couple months ago and they didn't hook it up, I had to pay a $200 deposit and hook it up and read the codes myself. But they give the deposit back as soon as you return the scanner. Other than that, no way to point you to the direction of the problem, especially since you aren't able to provide the code it's throwing.