[MBZ] engine speed sensor

2007-09-14 Thread ned kleinhenz
Can anyone tell me if the tachometer and the engine control system both use
the same engine speed sensor on my '95 E300D?
There is one speed sensor that plugs into the driver's side of the bell
housing on this 606 engine.  It there another one someplace?

Thanks,
Ned Kleinhenz
'95 E300D x2
'85 300D
'80 300TD
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Re: [MBZ] engine speed sensor

2007-09-14 Thread Marshall Booth
ned kleinhenz wrote:
 Can anyone tell me if the tachometer and the engine control system both use
 the same engine speed sensor on my '95 E300D?
 There is one speed sensor that plugs into the driver's side of the bell
 housing on this 606 engine.  It there another one someplace?

The 124 diesel tach and the engine control system AND the AC control 
system all use the same engine speed sensor on the bell housing to 
monitor engine speed. The signal goes thru the over voltage relay and if 
it fails, none of the above systems receives engine speed information. 
The connection from the speed sensor leads into the wiring harness can 
corrode and I've had to clean and/or replace them on several cars 
powered by OM60x engines.

Marshall
-- 
Marshall Booth Ph.D.
Ass't Prof. (ret.)
Univ of Pittsburgh School of Medicine
[EMAIL PROTECTED]

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