I posted a question about this a while back but still have not solved problem, but have established what it isnt!
Basically, we have a 2003 1.6 8v Auto Astra, it was fine, then we didnt drive it for 2 weeks, went to drive it and throttle didnt do anything, no response at all, as if its been dosconnected.
I think its fly by wire.
We checked relays etc and they all seem fine, we then got the ECU sent off and this is fine too.
Any other ideas what it could be?