A sobering tale in these days of technology K39 sailed threough her test last tuesday. Not been run properly for over 3 years. Put a couple of gallons in with Millers, then kept running it stationary for 15 mins or so all the week before, got her really warmed up for the test and she registered 1.4
No turbo, no electrickery,........ RESULT !!
For turbo cars, Iwas once told that if emissions were a problem all you needed to do was disconect the pipe to the wastegate, do the test, replace it.
Never needed to try it myself but he swsore it workled every time.