Misfiring codes P0300, P0302 and P0306

SHOdded said:
5+ years time to see how it is holding up.  Also, have you tried running without methanol yet?

I haven’t run the car without the meth tune yet. The car isn’t my DD more of toy. The O2 sensors will be here tomorrow. I’m pretty sure that is gonna resolve my issue. But I’ve definitely but wrong before so we’ll see...Lol... once the O2 sensors are in I’m gonna use up the E30 in the tank. Then download a non meth tune and refill with 93 octane and see what a datalog shows. Hopefully everything is fixed. I’ll report back.
 
Here’s the O2 wideband sensor from the front of the engine. You can clearly see the same orange coating as the spark plugs. Getting ready to swap out the other O2 wideband sensor now...
 
Ok looks like replacing both wideband O2 sensors fixed my issues. I’ll be replacing the narrow bands next week just to be on the safe side. Also gonna run some fuel injector cleaner as well. Thank you everyone I really appreciate all the help. If there’s anyone out there running Boostane you might wanna stop before you run into these issues.
 
SHOdded said:


Thank you! I’m so glad it wasn’t a fuel injector issue. That would of been a issue!! I like to do most of the work myself so I would of had to tackle that...
 
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