Corsa b 1.2 16v problems won't rev, revs itself lost all pow

[eyat24]

I've got a 16 v 1.2 S reg had all the problems of faulty icu valve, then got worse I've change the icu for brand new one today had battery disconnected for well over an hour and it's made it worse now the car has a lumpy idle n can only just make the revs go up if I repeatedly press the accelerator. I've disconnected my MAF sensor with no change any ideas??

[johnny]

Try disconnect the egr valve or blank it off altogether, you can buy the proper ones or if you have some metal lying about you can easily make a temp one

I was going to say something else but I forgot I'm sure it'll come back to me later