Next thing I’d check is the fuel injectors. While the engine is running, you can grab a screw driver, put the tip on a running injector and the handle to your ear and hear if each injector is firing. You should hear a periodic ticking noise from each running injector. YouTube should have a good video of this if you’d like to see how the test works.

I have been having misfire codes p0301 and p0300 and when I pull off with foot flat down it goes to pull off revs drop pulls back then it pulls off witch is not good pulling out on a roundabout sometime I changed the spark plugs not that long ago and just bought a Delphi coil pack. No change and the codes are still coming so I’m hoping it’s going to be something to do with fuel but where do I start hoping you can help me 🙂

Misfires can be caused by many things. Are there any codes?

That is a lot of seemingly unrelated codes. It sounds like an electrical short or a bad ground to me. Ensure the connection to the battery terminal and all ground straps are clean and tight. If you have access to a factory service manual, see if those sensors share a common circuit or section of the wiring harness and start there.

I would go back to what was changed in the very beginning, the “engine seating” and the injectors. See if anything in this area was touched in the process that may have caused it to malfunction.

The original mechanic should be able to give you a detailed list of everything that was done. These issues seem to be unrelated, so it could be an electrical issue like a bad ground.