Hi guys
My 2007 se manual has a random miss fire.
When i say miss fire, its more like it misses a beat, drives lovely for miles then has funny moment where it judders as if ive turned the ignition off and on quickly, Its not a lack of power just a split second judder.

A few weeks ago it cut out and would not start without removing and replacing the key, run a while and cut out again, done this all day, done a reset and it cured that.
Since that day the judder has become worse, more like its missing two beats, and more often.

I am convinced its electrical, ive cleaned all the multi plugs i can see with electrical contact cleaner and still the same.
It had a new battery last week after a low voltage issue, still misses two beats though.
Are there any known multi plugs that play up or regular places for a broken wire maybe.
Someone mention Crank sensor for the cutting out, could that cause this problem.

Appreciate any help or suggestions.

Almost certainly the crank position sensor (CPS). Your description of momemtarily turning the ignition off & on describes it perfectly. (Now Sold). 2008 Freelander 2 (Nazca Sand) SE TD4 Auto. Statutory write off & on WOVR for hail damage but still road legal.
171037Km as of 09/05/22
Superchips Bluefin Flash
Nanocom Evo II (also sold)

If it had a key i would say its being flicked off and on or a motorcycle kill switch being flicked each way, only way i can think to describe what happens.
Glad its looking like the crank sensor, work put a battery order in today with Euro car parts and got the sensor for a tenner for me, cheap fix if it works.

Changed the crank sensor and it appears to have cured the problem.