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Message: <blockquote data-quote="carlsberg" data-source="post: 626096" data-attributes="member: 21454">ive changed the MAF before, still the same...... the ICV, i dont have a spare, so will clean again.... the parts i have here are a later version, the ICV seems to be in the manifold, mine is early e36, with metal can ICV fitted on the manifold....    i just tried again, it fires up perfectly, but what ever it is that makes the engine rev a bit on start up seems to be intermittent... im really thinking its the ICV.....edit, when it does start, theres no petrol smell or such, so i think the engine temp sensor is working ok...  mixture wise i think all is fine, its the electro mechanical part thats the issue.... i wish i had an ICV to swop in to see..........</blockquote>