clio 1.5 DCI wont start 'too many missing teeth'

hi guys, just wondering if any techies could help me here.



i have a clio 1.5 thats died on me, symptoms are it just turns over and flashes the red engine management stop light.



got a friend to plug his solus in and it came up '1007 too many teeth missing'



now from what ive googled this means the sensors faulty on the flywheel which is the crankshaft sensor? or the TDC sensor?



at the same time everything i find seems to relate to the 1.2 engine so just want to check before i buy one or if anyone else has any ideas? bit stuck!



thanks! sam:o