Engine Check Light or MIL

[sryabee]

My 2000 Sienna has Engine Check light on for two weeks. We checked into a local dealer and were told to use different brands of fuel and adding fuel injector cleaner to fuel tank. Been there, done that. The light is still on. Now, the dealer suggested replacing all the injectors (after pull diagnose codes: p0300, 301 and 305). By the way, my Sienna has 49000 mile and, indeed, experiences some sort of miss-fire when starting.

Any comment and suggestion are appreciated.

Thanks,

--Yabee

[OEMonkey]

if the injectors are indeed to blame for the misfire, why would you replace all the injectors if only 1 and 5 are misfiring? you should ask the dealership why they would recommend that. all of the injectors going bad at the same time is highly unlikely.