So my check engine light has been coming on and off once in while for about a month or two intervals... I hooked up the obd2 reader and it said "Cylinder 1 misfire detected". Does anyone know what could cause this? I just changed my spark plugs a couple of months ago and replaced them with the oem iridiums so i dont think it could be the spark plugs? Any help is appreciated!

 

it could be a bad spark plug. Buy a new one and take out the old one and inspect it and check it for cracks and such. The plugs are pre-gapped so you don't need to redo that portion. Put in a new one and see if it stops.

As well when you take out the plug, check the coil pack for ANY damage! Be careful with it as it very fragile!

 

ok thanks for the help! im hoping that it is just a bad spark plug and not something serious.

 

I had the same problem when acclerating hard, took it to the dealership and they ran all these test and could not figure out what caused the CEL. They suggested trying a different brand of gas. I've switched from Chevron to Shell and so far I haven't seen the CEL again.