2000 CAMRY LE 4 CYL 2.2 LITER. MILE 82030 GOT CHECK ENGINE P0401 (EGR Insufficient flow detected), Replace New EGR Modulator and Replace New VSV, after that everything looks OK.
MILE 96200 Got Check Engine P0303 (Cylinder no.3 misfire detected), put some Fuel Injector Cleaner, looks OK. Should I replace the injector?, How much is it?, Should I replace on no3 or 4 injectors?, Is it related between P0401 AND P0303?, Is it big problem? or just small problem?, Should I sell the car or keep it?