has anyone cleaned there egr valve on a petrol Astra h? The code came up on my mates diagnostic. I have had a look online and they look easy to clean but I haven't seen any videos or pictures about the Astra h petrol one. And also where is the location of it? On my old Astra mk4 it used to be behind the engine. I fancy having a go cleaning it myself rather than buying a new one
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