TFSI

So I have this2.0T Audi A4 with CEL on, car runs or responds to accelerator pedal well when revving up but MVBs taken on cylinder...

Hi Aside Uwe's contribution, it also doesnt hurt anything to check the plugs too especially Cyl.3 on an engine of over 77k km. Car only...

In a car that has a battery Monitoring Module, which yours does, as a sub-system of the Gateway, I would say it's normal. The gateway...

No just the servo only but the vacuum lines leading to servo when they leak vacuum you may have similar issues.I think this car has...

oh my bad..i misread the thread last night sorry, no spark in TDI :banghead:

Plug no.3 is clean possibly due to very little or no compression as a result of possible thick carbon preventing valves to close well...

Since you are familiar with forum rules now , please learn how to post your autoscan in code for easier scrolling. If you started the...

Have you unplugged the J104 module to do wiring check and also check possible contact corrosion?

Okay have you tested if spark is present at the plugs tip? Fuel supply present??

Yes, that's one possible cause. -Uwe-

My pleasure and good luck with your car issue.

With intake manifold out I know wire brush in a form of tooth brush is one of the tools, but there are other aftermarket products for...

Well this is a VW, always limited space in engine area but effective carbon cleaning can be done successfully if you have the right...

Always do the basics first: check plugs, move coils around to see any shift in misfire etc. From my experience, excessive carbon-deposit...

Compression test? Intake valves carboned up? Condition of fuel injectors? -Uwe-