09 4dsc owner

hello all ! i am new here but need to post .
i have a 2009 maxima thats in the shop . 3rd time in as many weeks .
random engine missfire
car started missing at 3000 miles . called dealer and they said as long as the ses light wasnt on it was bad fuel.
at 6000 miles the ses light came on but did not flash .
they took it in and cleared code and found random engine missfire .
they checked injectors , mass air flow , coils , etc etc
drove it home and the next day light came back on .
they said drive it a few days and see if it gets worse ..... again bad fuel maybe . was instructed to buy from a different station . then 2 days later with light still on it stared flashing and running worse theysaid bring it right in . after 5 days they said it was number 1 injector and plug . one my way home they ses light comes back on .
they now have had it 2 more days .
anyone heard of this or have any ideas ?

vrefron

You're aware that it calls for premium? Also, fuel issues can take some time to work themselves out. The bad fuel has to run through...

09 4dsc owner

i am aware that it calls for premium . and thats all we use in it. but even lower octane will not make it miss and have a missfire code . well it been out of the shop now for a little over a week and they installed an ecm . seems to have fixed it . we will see