hi, just noticed your message. The rpm can only be read on the EZK when using the Hammer. The Bosch KTS301 cannot do some of the things the UDT can
The UDT999 can also check the rpm recording in the LH but like you said, the fuel management gets corrupt and this will give only limited readings.
Your message may confuse Bosch Hammer owners

Hi, Siscogts! I live in Cordenons, Italy. Interesting; I've only seen one 928, and it was a very early model. It was parked outside an aftermarket car parts store in Roveredo in Piano. I left my '88 in the states while I work in Italy for a few years, and I really miss it. I would have loved to blast it down the autobahn!