P0300

[BigWheel89]

I have a 2003 Tahoe that starts fine then after bout 1 minute it shakes an when I go to pulling off I have to patt the gas to get up to speed an if I just hold it won’t do anything I done changed fuel pump fuel pressure regulator injectors coils plugs wires throttle body position sensor an it still dose same thing I’m going through it over here ….Drowning lend a hand

 

[Scottydoggs]

how high are the miles? if high the cats could be clogged up.

 

[BigWheel89]

how high are the miles? if high the cats could be clogged up.

Around 246, I was driven an the engine light started flashing as I accelerated an I gota back fire