by NowForThe5th on Sun Mar 19, 2017 2:59 pm
Greyghost, a year ago you were going back to your mechanic to find the cause of this error code. Did you do this and what did he find?
I imagine that you have looked up the P0300 error code and know that it is "misfire detected" but not any specific cylinder. If you've changed plugs and leads then the next thing would normally be coil packs but, before you go there unplug and replug the main engine loom connections. These can work loose after a period and create a problem with random misfires. Ensure that they're plugged in correctly and seals properly installed and seated.
Chris
If work is so terrific, why do they have to pay us to do it?