Hi Doc Diesel, Thanks, very informative reference. I'm confident that my turbo charger is still working but how efficient is another thing. I have to DIY the process as mentioned on your guidelines.
The OEM intercooler sensor priced at 1050 at El Dorado's, I might replaced this on weekend to prevent intercooler fan motor from burning.
By the way, what is this starting fluid used to check leakages between turbocharger and air cleaner?