Hey Folks, Thanks to the wonderful help of this forum I got my 996 back purring like a kitten. Well, maybe barking like a dog really!! As part of my troubleshooting I bought a second hand 916 ECU from eBay. It's tested and fully working, and I've just advertised it back on eBay for anyone looking for a spare ECU. Part Nos: IAW 16M.A0 16M409-BIP947 Cheers, Ripface