ok, so...
my 1999 1.6 8v astra mk4 is doing my head in.
its running like crap, misfiring, no power, swallowing fuel and wont rev higher than 4.5k revs.
im at my wits end with trying to figure out whats up with it,
ive tried a new EGR valve, new injection unit, engine coolant temp sensor, new spark plugs, had it plugged into diagnostics and that revealed nothing...
its the single point injection so im not sure about air sensors???

what else can i try? i think the next step is to check the timing?

any ideas anyone?