![Just replaced all ignition coils and spark plugs and it only starts misfiring if it idles too long. I'm thinking vacuum leaks but I know those are hard to find so can Just replaced all ignition coils and spark plugs and it only starts misfiring if it idles too long. I'm thinking vacuum leaks but I know those are hard to find so can](https://preview.redd.it/just-replaced-all-ignition-coils-and-spark-plugs-and-it-v0-5f4zkiuxihca1.jpg?width=3024&format=pjpg&auto=webp&s=2ce11356eff803a2d420c2101f5de16992989935)
Just replaced all ignition coils and spark plugs and it only starts misfiring if it idles too long. I'm thinking vacuum leaks but I know those are hard to find so can
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BMW E46 Spark Plug and Coil Replacement | BMW 325i (2001-2005), BMW 325Xi (2001-2005), BMW 325Ci (2001-2006), BMW 325ti (2001-2004) | Pelican Parts Technical Article
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Nissan / Infiniti Nissan OEM NGK Spark Plug, Colder PFR6B-11B - Nissan 300ZX Twin Turbo Z32 22401-40P66 - Concept Z Performance
Pictorial DIY for an M54 spark plug replacement on a 2002 BMW 525i E39 with 95K miles | BimmerFest BMW Forum
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