Without reading the codes you would only be guessing as to the fault, and you could end up changing parts which don't need changed, but a simple test for the pedal, start van, when it is sitting try pulling throttle pedal from side to side, if the light strt flashing then the pedal is faulty
2012 Ford Transit 125ps 260 Trend
2011 Ford Mondeo 2.0 Titanium X
Retrofit cruise control, dash upgrades , egr deletes and remaps from Is a dream a lie if it don't come true
Or is it something worse?