Hi Guys, New to this forum so hello all firstly.

Got a 1999 ml320 with lpg conversion. However it has been misfiring and came though on the computer and have got fault codes p0300-80, p0303-83, po304-82 and po306-86. I have a misfire in cylinders 2,4 and 5.

I have read about a few options but even starting on spark plugs looks around £70, and understand coil packs are a possibility and also air mass sensor. I have been able to solve this problem by restarting the engine which makes me think it could be an electrical fault. Anyone else experienced this, or solved it? Thanks in advance.