Zeitgeist wrote:
There must be a cutoff date for many of those things to appear, because I
have an IP and turbo unit from a '90 or '91 603.97 engine, and none of their
functions operate differently than my 603.96 engine. I'd be willing to bet
the W140 w/603.97 engined cars all have the newer systems in place.
The wastegate opens on '90s Mercedes diesels when there isn't proper EGR
function or if there is excessive boost sensed at the intake manifold (I
believe). In the '80s OM603.96 engines brought to the US the wastegate
ONLY opened when boost pushed the wastegate open. LOTS of little
differences. The computers are VERY different.
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84
190D 2.2 229Kmi (retired)