my engine light is blinking and my engine is shaking - i have new spark plugs and an new egr valve ( all the diagnosis codes said something about egr) -all cylinders show to be misfiring - what should i check next

 

Tell us the model and year of your Accord and we could be more specific.....

recheck your engine codes and post up the exact numbers that you are getting. They can be very helpful with diagnosis. A general misfire could be the EGR, a specific cylinder misfire could be a fuel or spark issue.

Have you tried unplugging the EGR or testing/replacing the EGR? It can cause misfire issues.

Now if you are also getting specific cylinder misfire codes you could look at the following;
• Ignition coil
• Spark plug wires, distributor cap and rotor button
• Fuel pressure
• Fuel injectors
• Fuel filter
• Low compression in the cylinder
• Improper valve clearance