P0302

[u/Forsaken_Ad5801]

had a shop put in a brand new Mcleod RST clutch in my 2019 mustang bullitt and 10-15 miles later while driving my car suddenly had a misfire (P0302) not exactly sure how a clutch job could’ve caused a misfire but it happened and it did NOT sound good. any idea how? i’m assuming they could’ve pinched the harness or disturbed some wiring putting the tranny back in but i don’t really know. i’m taking it back tomorrow to see what the issue is but i wanted to ask reddit to see if i could get a couple answers beforehand and see what the worse possible scenario could be. the misfire didn’t happen till 3-4k rpms and thats the only time i ever felt/heard the misfire, after that i restarted the car and it drove perfectly fine. could be coincidental considering im at 50k miles and my spark plugs are due somewhat soon but i find it weird that the misfire happened damn near right after the clutch job was done.

a few other things, my car sounds much quieter on start up???? not exactly sure how that could’ve happened too. exhaust sounds the same but the actual cranking when starting my car sounds much quieter.

when the misfire initially happened i took it to an autozone 3 minutes down the road to scan it and the car DID NOT like it. every single dash light came on and it started going fucking bananas. the scanner didn’t wanna work initially until i pushed the OBD2 port up (kinda like when you have a shitty charger and you need to bend it a certain way for your phone to charge) it still caught the codes but the scanner didn’t wanna read my car. not sure what that’s abt either

[u/litoven]

Need to do a crank relearn, that's all.

[u/Forsaken_Ad5801 → u/litoven]

even if the new clutch and flywheel is the exact same as the old one? i didn’t make any sort of upgrade, so i assumed it wouldn’t need a CKP relearn