I’m not too sure of the year but I think its 2001 as it only has 43k on it. Its and Astra 1.6 8v club I think? It’s my girlfriend’s mate’s car and she is having a bit of trouble. When she is driving along sometimes mostly once it has warmed up it chugs then cuts out then is quite had to start. I changed the oil filter, fuel filter, spark plugs and oil for her and it is the same? Any ides on what this could be. She says she took it to a garage and plugged it onto the computer and it read no faults but the garage doesn’t seem to have that good of a reputation. The engine management does not appear when this is happening? Mostly when in 3rd gear slowing down to approach a round about seems to be the main time it happens? Any ideas appreciated?