I changed all the parts
Spark plugs
Hydro tensioner
Water pump
Timing & serpentine belt
Pulley
Oil n filter
Fresh coolant
Valve adjustment
Car doesnt sound like nothings wrong
But it pulled 8 codes
And they all are misfires
P0300
P0303
P0306
N dont remember the rest
But it still had those same codes prior before the valve job
Mechanic said all my parts looked good n valves werent loose
But he changed all the cheap aftermarket parts previous owner had n I got all oem honda parts
Anyways I did some research
And people saying o2 sensor or coil packs
Idk what too do since I dropped $1,300 on parts and labor
Spark plugs
Hydro tensioner
Water pump
Timing & serpentine belt
Pulley
Oil n filter
Fresh coolant
Valve adjustment
Car doesnt sound like nothings wrong
But it pulled 8 codes
And they all are misfires
P0300
P0303
P0306
N dont remember the rest
But it still had those same codes prior before the valve job
Mechanic said all my parts looked good n valves werent loose
But he changed all the cheap aftermarket parts previous owner had n I got all oem honda parts
Anyways I did some research
And people saying o2 sensor or coil packs
Idk what too do since I dropped $1,300 on parts and labor