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When the check engine light blinks the engine is detecting a missfire. Since the lightis on there will be codes stored in the pcm that will need to be read with a compatible scan tool. You should go to your local parts store or autozone as they will usually scan your vehicle at no charge. If you have missfire codes like P0301...P0306 then I suspect faulty ignition wires and fouled plugs. Let me know how you make out.