Vag com + fiatscan latency issue
Have a mscf come on and now have very rough idle and feels like no performance at all. Came on while accelerating in 5th and then really struggled to build speed. Disconnected MAF and went for a spin and above 2-3000 rpm it seems fine so I am guessing at MAF... But from what I read the mscf wouldn't be on, and it is on constantly flashing and on startup after a few seconds it starts flashing. I have a vag com cable from eBay but I can't get it working. I don't seem to be able to get the latency option screen from advanced settings and in FES the test just times out straight away. The cable was a cheap one from eBay, winchiphead or something and comes up as a CH340.
I want to read the codes before I spend £100+ on a new bosh MAF to try to pin point the issue.
Any advice appreciated with possible causes of mscf and poor idle/performance and my com port issues with the cable... Perhaps I should just buy a new one tried and tested from rare bear ?
Cheers all and happy NYE