Technical electrical fault. any ideas?

[dac69er]

had the car stall on me about a month or so a go for no reason, no engine management light or fault codes. was going along at about 50mph and came to a stop and it died. fired straight up and has been fine since, until today!

did about 200miles this weekend and it happened twice. once whilst at a constant speed, about 50-60mph and once again while manoeuvring.
the first time the engine cut out, but i turned the ignition off and it restarted (whilst still going along), at lower speed the engine just lacked power but still kept running. turned the engine off and back on again and it was fine.
both of these occasions caused the engine light to come on so it had some fault codes as attached.

no issues since these 2 occasions. i have checked over the connections and everything appeared ok. no obviously damaged wires or anything.

any ideas on where to look next?

 

[mrcinquecento]

Interesting one. Since it's coming up as a multiple ground fault, i'd be cleaning the earths on the coil pack, ecu case and gearbox and taking it from there.

 

[DIDCOTT]

I had a similar issue last year with the Sei it turned out to be the earth strap under the ecu had corroded.

 

[dac69er]

But the faults said short!?

All the earths are good. I have redone them a couple of times as I have had various issues.
I will double check them anyway in case one got missed or is loose.