Hey guys today I was just driving along and my engine light came on and started to flash I checked it with my scanner and it came up with P0301 wich is #1 cyl misfire. I had noticed today it was taking longer to start when warm about 3 seconds of cranking. I live in Ontario Canada the temp here was around 32 degrees Fahrenheit or 0c my car has a new Mazda cat (sept 2011) wires, plugs and coils were done 5000kms ago. My car has 121xxx kms on it Any suggestions? thanks.

 

year of car? Any mods?

 

Sorry 2006 GT 6m greddy exhaust, racing beat cold air kit.

 

first thing you should do is check to see if everything is connected properly.
You could also test your plugs and coils, to verify that they are fine (some have been known to fail early...)
Check this thread for misfire issues