I don't know if any of this background is likely to matter, but I'll try to be thorough:
-Bought used at 100k from dealer in Oct
-Currently at 118k
-I had the oil changed on Sunday, used high-mileage for probably the first time. The guy at Jiffy Lube (please don't judge me) said the air filter was installed backwards, and dirty. I declined his upsell, but I'm guessing he put it back "correctly".
-I drove around on Monday with no issues.
-On Tuesday after idling for 5 minutes in the driveway the CEL came on (and flashing cruise, brake, and traction control). I drove around a little and it ranged from sluggish to extremely sluggish, and I had to crank it extremely long to get it started again right after.
-I just got the codes read at Autozone and they say:
- it's misfiring on every cylinder (P0301 to P0306),
- too lean on both banks (P0171 and P0174 - each is repeated 3 times on the printout I have from Autozone)
- Control Module Programming Error (P1602)
The guy at Autozone tried to sell me 6 plugs and coils, but I declined - I haven't checked yet if the dealer replaced those before I bought it. I'm suspicious that maybe the trouble could be because of the "Control Module Programming Error", but I don't know what that is.
Does anyone have any ideas?