![]() I will inspect the intake ports at that point for carbon build up, and clean them chemically if required. I plan to remove the intake this week, clean it with throttle body cleaner, replace the seals and do a relearn on the throttle body. I backed out all the bolts, and using the correct pattern tightened them to factory spec. I found the lower right bolt backed out 1/4". No one has worked on the intake since I purchased the car. Intake Manifold - This is a little strange.Shuts down after engine / cat come up to temperature. Secondary Air Pump - Works fine when being forced to run by VCDS.The inhibitor was applied after the misfire issue surfaced while inspecting the connectors. Electrical - All coil and injector lines are free of dry rot, in perfect condition with no broken parts, and are treated with a non-conductive moisture inhibitor.Compression - All are between 185 and 195 Lbs.Old plugs had no signs of abnormal firing, etc. N80 - Just because it is a common problem.Coolant & exhaust temperatures read fine.Fuel trims after DTC reset and driving 500 miles look normal and respond as they should to load.All voltages on the packs and knock sensors are within normal range and not more than a few tenths of a percent apart from one another.All Readiness Tests pass after clearing DTCs.No Misfires reported unless I cause them by pulling a coil.The slight misfire is not reported in VCDS.When a coil pack is disconnected, the resulting misfire vibration is great enough to mask the lesser one I'm hunting. That is part of what makes isolating the problem difficult. I say slight in that it feels nothing like what you would feel with a coil pack disconnected. When warm under NO LOAD (in Park), the engine feels like it has a slight misfire at 900 and 2,100 RPM.Maintenance - All factory maintenance performed on or before schedule with OEM parts unless otherwise indicated. History - Purchased in 2015 with 32K miles When you install the VCDS softwares on 64 bit system, you must choose “install 32-bit EXE on 64-bit System”.Driving - Majority of miles are highway, that changed when the pandemic hit. German and English Version Full software download link with all instruction files and video: Vcds-loader-v1.15.rar this vcds loader only works for vcds updated version, if it's hex v2 updated version, please use the vcdsloader plus II in the CD. if you have problems on the latest version vcdsloader, please use V1.20 version, downgrade to 20.42 version vcds. VCDS Loader V1.22.1 support vcds 21.12 Version VCDS. VCDS Loader V1.22.1 Release Setup(EN) Download Link: 2020 Latest VCDS Softwares for Full Languages Download link and Installation Instruction ![]()
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