Help reqd! - Injection system failure punto mk2

hello, my fiat punto mkii has a few problems

When i switch the car onto the MAR switch, the warning light comes up on the dashboard for 'Injection system failure' - does any any one know how to fix it / how much it costs to replace?

Does any one nw how to change bulbs in the headlights?

Your Injector system failure could be an ignition coil but best post your question in the Punto Technical Forum

there are dozens of possible causes for that light, you need to have a diagnostic performed to tell you what fault codes are stored in the ecu.