Discussionson the New Audi A4/A4 Cabriolet. B7 chassis from 2005 to 2008. Search. Search titles and first posts only. Search titles only By: Search Advanced search Search titles and first posts only B7 2.0 petrol engine base spec comparison . Charlie Farley; Nov 4, 2023; Replies 9 Views 565.
ForumRules. I have a 2009 Audi A4 2.0t that is plagued with a random misfire code. The car mainly misfires when it is idling, or during ignition. I have already put in new ignition coils, coil connectors, high pressure fuel pump, alternator, pcv valve and spark plugs. I have also done carbon cleaning.
Quickbackground: my father owns an import repair shop specializing in Audi/VW and Toyota/Lexus. I am not a mechanic, but sometimes consult with him on VCDS, diagnostics, research on pattern failures, etc. We recently had a 2005 B7 A4 3.2 FSI Quattro Tiptronic roll in with a tricky problem. - Engine RPM will "surge" moderately,
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