Explorer 2002, code P0302, hesitate symptom

Question

Troubleshoot code P0302, blinks or solid light! What order should we trouble shoot?

Answer 1

Check/replace spark plugs if you have not replaced them as a regular service (use the oem spark plugs nothing cheap)

if you still have a the problem, the ignition coil or the wiring might be bad. you can try to swap the wire with another cylinder to make sure.

you can try to run a good fuel system cleaners like 3M or BG 44k if there is a clogged injector it might help.

worst case scenario the injector is bad or clogged.