1990 Mazda MX6

Electrical problem
1990 Mazda MX6 4 cyl Front Wheel Drive Manual 170000 miles

As I drive my car in the morning(even after I let it warm up a bit) It seems like the fuel will cut off for a moment, and then suddenly it will act like I have the throttle to the floor for a second.
I am wondering if the problem is related to the fuel pump, or maybe the fuel filter is clogged?
I dont have the $$ to just start replacing parts to see whcih one works.
August 15, 2009.

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