coil going???

My car is similar to yours (2003 Sport20) Intermittent Misfiring, bad mileage and hesitation. As it gets worse, misfiring increases until the car is barely drive-able and then the coil pack fails altogether. It does not throw a code.
 
Itl throw I code if it spases out and the cel will flash might want to fix it before it messes up your Pre cat
 
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