Audi tt rough idle, Oct 5, 2022 · Hi, my Audi TT Mk1s PCV system has failed due to all the corroded lines and upon some research and recommendations. Spark– The spark needs to happe Aug 13, 2008 · TT (Mk1) Discussion - I am experiencing a very rough idle from cold - start to no idle every so often lately on my 2001 180HP until it warms up. Has anyone any ideas how to fix this. May 7, 2018 · Solved - Rough running & stall on idle Jump to Latest 12K views 12 replies 5 participants last post by Pukmeister May 9, 2018 richardkhill Discussion starter Your TT’s engine needs air, fuel, and spark to achieve optimum ignition. Carbon builds on intake valves from direct injection and PCV vapor. After replacement, the engine idled smoothly and stalling stopped, confirming the valve as the root cause and 1 day ago · Check engine light on. Parts cost sits near $150 and labor under 1 hour. First trip was to my trusted shop, where I have been taking my 2 days ago · The ECU sees underboost and logs P0299. . What brands make parts for the 2002 Audi TT Quattro? We carry parts from trusted brands including Clutch Masters, SPEC, ACT, DKM Clutch, and Fidanza, plus many more. When one or more of these variables is off, it can lead to a rough idling condition. 7 parts air to one part fuel. Does anyone know how I would get this Apr 6, 2023 · Hi there guys and gals, Backstory: I have bought my MY16 TTS back in february. Power loss under load. Jun 9, 2025 · Audi idling rough? Oceanside Motorsports explains likely causes and how to restore smooth engine performance. 1. Fuel– The ideal air-to-fuel ratio is 14. 2. Upon the first drive home, after starting the car, it seemed like it was idling rough, but very intermittently and usually only in economy mode. Audi released piston-style revisions that hold pressure better. Diagnostic trouble codes indicated a faulty idle air control valve as the likely cause. I have not replaced my coolant temperature sensor in over two years. Instead of Jan 7, 2026 · Hi I bought a Audi TT 2012 on Sunday, get this noise through the vents above 60mph, has to be wind related as it goes as you slow down. Air– The air entering your car’s engine must be metered by the MAF or MAP sensor. Rough cold idle and P0300–P0304 misfires start around 60,000 to 80,000 miles. This Audi TT came in with a failing camshaft adjustment valve, throwing timing-related faults and affecting performance. I have seen catch can kit from billy cloude. Audi TT Quattro Rough Idle? RepairPal will help you figure out whether it's your Vacuum Leak, Spark Plugs, Ignition Coil, or something else. Experiencing rough idling or stalling with your Audi? To reveal the reasons behind poor Audi engine performance, our team of Audi specialists have developed an in-depth guide. Is that the cause or do you think it could be something else. Rough idle. Oct 4, 2025 · A 2010 Audi TT experienced rough idle after startup, occasional stalling at stops, and an illuminated check engine light. The issue was resolved by having a workshop replace the idle control valve. Swap the valve and boost returns to target. 3.


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