I have p0302, p0303, p0304, and now p1457 codes. Which I know are misfire cylinder 2, 3, 4, random misfire and EVA.

I've recently changed because these needed to be done. Spark plugs, coils, catalyic converter, timing belt, valve adjustment, valve cover casket and crankshaft sensor
still getting codes above and now the new one any ideas as to why I am still getting the code? Would changing out the fuel filter help or would it be more than just the fuel since that is the only area so far I have not checked?
I also changed the cam sensor however eventually the codes p0302 p0303 p0304 and p0300 came back but p1457 is gone.

 

Things should be tested before replacing them , did you check the fuel pressure ? Did you do a compression test ? Are the injectors O.K. ?

 

Check for these common issues with these cars: breached head gasket and a failed By-pass (Canister) Shut Valve (CVS)/Canister

Use only OEM Honda sensors and spark plugs.

 

Injectors are ok. compression is good fuel pressure was not checked because when the cat was discovered with a clog they took it loose and the problem right than went away but did come back up again.

 

Ok that is my next thing is too check head gasket canister and shut valve along with fuel filter to see if that is also clogged