Gems is earlier system (up to '99 i believe). Thor is the Bosch motronic (99 - 2002). Thor is regarded as a much more robust system, also with better torque.
Simple way to find out what yours is look at the plenum, if it's a rectangular shape with 4.6 stamped on top it's gems, if it looks like a bunch of bananas it's a Thor.
There's always one...
Thanks in advance,
Regards, Gerald.
Humourless git martyn.
errr....ok
I do wander into the 'culture' on occasion but get tired of having to wipe my feet every time i re-enter here
My apologies, I only just noticed yours is a P38.
Do you send your mechanic forth... ?