hi , the engine management light came on, on my mk4 astra sri 2.0 16v (x20xev)
diagnosed it and it said ,
throttle position sensor low voltage.
camshaft sensor incorrect signal.
iv changed both of these sensors with brand new items and the fault is still there.
its doin my head in as it has flat spots through the rev range and wont rev over 4500 rpm.
using loads of fuel too.
any suggestions??
thanks.