Corsa sport over fuelling?

[Big Kenny]

Hey, I've got a 1.4 Sport, had a problem a while back when the water pump went and it jumped the timing.

Did damage to a couple of valves, so one of my "friends" repaired it. He did the timing belt, water pump and head gasket.

When I collected the car it was running a bit lumpy, he told me it needed new plugs. By the time I got it home it was stinking of fuel (approx 10 min journey).

Got it on a code reader and got a P0200 code and camshaft sensor fault.

Can anyone help? Have been told it may need ECU?

Cheers for reading.

[Big Kenny]

He still got the corsa think I mite start looking it over but still got th p0200 code can any one help