R129 '93 - Specs for diagnostic engine management protocols
 

Hi all.

I'm carrying out a little investigation into MB diagnostics (http://www.peachparts.com/shopforum/showthread.php?t=139846) and am a little stuck, so wonder if there's any help available over here?

I need to find out what protocol is used for the engine management data that appears on pin 4 of the 38pin diag connector. My car is both pulse code (for the majority of modules) and some type of streaming data for the LH management.

Any clues would be appreciated.

Cheers
Lea