When the engine management light comes on it is either the result of a fault
or emissions parameters being outside of expected values.
You need to get the "fault code", which will have been stored in the engine
management sytem, read and decoded.
This can be done at a Fiat dealer or ANY OTHER suitably equiped garage.
Nick /////
> Have scudo van jtd, yellow warning light has come on, looks like an engine
> with arrows inside it.
> I don't have a manual to look it up.
> Also plenty of black smoke coming out exhaust when acclerating,help.