16 V runns like a pig when its cold , lumpy/ holding back , that sorta thing... dont think its the Lambda probe as that was changed recently, but i remmber someone mentioning the engine temp sensor, anyone no what the part number is ???
Yeah it sounds like the temp sender to me. Just have a goosie and make sure you change the right one. There's useually two - one for the instruments, one for the management. I had the same problem (only much worse) after I rebuilt the head on a mates Pug 205GTi. It took me weeks to find the problem, a dodgy connection in the temp sender connector.
I'll look the no. up tonight if no-one's beaten me to it. Its the 1.8 yeah?