mine has been sorted by CRD and it was the ignitor causing the issues
well 1st it was the o2 sensors playing up as well which may or may have not contributed to my problem? but with 13+ years of running, im sure its about time to change them anyways.
the ignitor would heat up after running the engine which is then sending the wrong signal to my 3rd coil....results to 3rd cylinder not firing properly.