Engine bogs down intermitantly above 45 mph

Xman757

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Engine on 99 Sunfire idles ok but bogs down intermitantly when it hits 45 mph or a high rpm. It contantly bogs down every second or two. Is it a sensor or fuel issue? Unfortunately the OBD connection port is inop for some unknown reason.
 
check your fuel pressure to start with and when was the last time you changed the fuel filter?
 
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