My 8 keeps turning offf at stop lights when ive been driving it for awhile and doesn't go when I'm pushing the gas I could have it floored and not getting no power it doesn't go please any advice will help !!!!!

 

A bit more data would help...

year, miles, fuel level, years since coils changed.....

And, welcome.

 

Yr 06 90mls jus got motor replaced in January with spark plugs and coils and replaced cat.in feb. cause old one was fried bunch trash in it also my check engine light been on since motor replcemt now it jus started flashing someone had told me it could be my rear or front o2 sensors or throttle sensors could this be for it turning off and not going when I'm flooring it when I'm at a complete stop

 

Did you replace the engine with a freshly rebuilt one? It sounds like bad ignition/clogged cat, but you just had those replaced. What cat did you use in the replacement? Does it happen to glow red after driving?

 

I installed a universal cat. And I haven't checked it to see if it glows red but it does get really hot on my center consoles and the metal holding my seats my wife has burned herself with it

 

Universal cats don't last. It's likely clogged.
Get your OBD scanned, if you get a P0420, take the cat off ASAP before this engine dies, if it's not too late.

 

Ok will do thanx for heads up bro.!!!

 

Even if you don't have that code, just to be safe, take it off and visually inspect it anyway.
Flashing CELs are always misfires, and if you think your ignition is good, bad cats can cause misfires too.