Take to some autoparts stores and have PCM scanned (free service) to retrieve codes.
There are some autoparts stores open today.
Check engine does not necessarily mean you need a tune, could be a sensor is out of range.
The only real tune up items are the plugs, air filter, oil change, but use ONLY Denso or NGK Iridium.
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Friday, January 1st, 2010 AT 5:11 AM