right i could do with some advice regarding the egr valve on my astra. The thing is, i'm looking to block it off and i have been lookin online and have found that some can be blocked off no problem and others need an ecu update. I have a 1995 astra mk3 1.4 spi. So i'm just wondering would i need an update on the ecu to get it runnin right after blocking the egr. I hope someone has done this on this engine or knows more about it I'd be very greatful for any help thankyou.