Cam Chain

[Passat my07]

Have you had the codes checked again to see which faults have returned?

[CARBON SINK]

Thanks Passat,
The Picoscope looks like it would be good for diagnosis. Do you know if a VCDS Cable gives similar information, with out the back pinning and piercing?

Had a dig under the hood today might be a vacuum leak somewhere I have overlooked.
Cheers for your encouragement

[Passat my07]

Is the picoscope just an oscilloscope? That would be handy for some things but it won’t give you all the fault codes etc that vcds will give. You’ll be able to read live data from the sensors with vcds. You can also code modules etc. It’ll be the best thing you can get for a vw but it won’t do other cars. It may not solve all your problems though because you still have to interpret the codes. A vacuum leak might give a code like lean fuel trim. Good luck with it.