Hi stuart,we all know that ecus do not wear out.but is it possible
That the coil pack spiked the ecu. which was replaced.and was a
delayed action which is common fault. for spiking ecus.thats if it was an ecu.if it was a BSI unit they are very common to pack up.
i recentley was called out to a peugeot partner. immo light flashing
Would not start. tryed to code keys. had to replace BSI unit.

Regards Greg