PUlled into gas station to fill up, it still had 5 gallons in it. filled it full then left station, started up and drove away. it bogged down on highway and couldnt get up to speed ( ithought it was tranny or brakes binding) . acted like it was pulled house. idles fine but when u rev it in park, it acts like its under load and wont rev high above 3-4k. rpms. had it towed home. its not throwing any codes. any help will be great. my ideas are bad gas (very unlikely), fuel pump, fuel filter, some kind of sensor?, coil, etc.

 

Do you hear any rattling? Could be a clogged cat.

 

You could put a vacuum gauge on and check for restriction in exhaust sys and test fuel pressure, air filter? I'd start there.