So you've bought a 308/328/Mondial..........

there are very few 88.5 and 89 328s to start with and even fewer unmolested examples keep em real these are the most fabulous Ferraris along with 512 TR F355 F430 and Ferrari Enzo Ferrari

 

That's when you're losing ignition on a bank, when the fuel is igniting in the cats, causing them to overheat. This can/will result in engine fires. So my comment above, you know you have an issue if the slow down light is accompanied with a loss of power (i.e., only four of your eight cylinders firing!).

 

what do I need to have done at the repair shop
thats the best explanation yet

 

Many first-time owners want to change the oil on their own cars, but dont know the process.

I'm assuming its the same on a 308, but I wanted to put this post on the sticky cause it took me forever to find it with search:
http://www.ferrarichat.com/forum/showthread.php?t=74999

Titled: 328 Oil Change / Step by Step process.

Has pictures.

 

While changing the belts (and tensioners?), check the cam belt drive pulley outer bearings. They are sealed, "lubed for life". When their "life" ends, you lose 16 valves!