With the mileage on your vehicle I would strongly recommend a valve lash adjustment. Normally the exhaust valves get too tight and hold the valve open too long where you will get the random misfire. You will also see it in the fuel trims being in the negative number indicating too rich.
The valve adjustment needs to be done when the engine is at room temperature. If you need instructions let us know and one of our colleagues will post it up.
Thursday, May 13th, 2021 AT 11:15 PM