I have a 1999 Fiat Coupe with VIS engine. (Non Turbo)
Is there such a thing as a workshop manual for this engine?? I have searched high and low!! I already have the Fiat Coupe workshop manual, but this does not seem to cover VIS.
I am getting fault code P0340 (Cylinder Identification Sensor)
Does anyone know where this is??

Coupe becomes sluggish and flat when warm (after about 10miles)

Any help gratefully received.
Thanks
Tony