Misfire problems
#1
Misfire problems
Ok so I have an 2004 s40 t5, everything was going great and then car starts missing and running horrible. I checked the codes and replaced the plugs and coils. Car is back to running perfect and then 2 days later while driving, the car shutters and dies and won’t start back. I run the codes again and it says p0300 random multiple misfire, p0304 cylinder 4 misfire, p2306 ignition coil c primary control circuit low, p2303 ignition coil B primary control circuit low, and p0303 cylinder 3 misfire. Now my question is did I just get a part that failed in 2 days or is there a more underlying problem? Any help would be greatly appreciated.
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