First, is the check engine light on? If so, then start there.
Also, this could be an ignition, fuel or mechanical related issue. (Even a plugged exhaust)
If you haven't performed a tune-up in quite sometime, I'd do this first before diagnosing any problems.
Then check your exhaust for a restriction (Converter), since this is relatively easy. (Plug a pressure gauge into the 02 sensor bung and compare the reading to spec.)
Then check your fuel system beginning with the pump, filter, regulator and injectors.
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Wednesday, January 20th, 2010 AT 9:25 AM