Dear All,

A question:
Where is the rpm sensor located on these 6cyl engines? I do not see (maybe I am just blind) the crankshaft pulley pin and sensor like on the 5 cylinder version. Sometimes the signal is lost and then I do not get an rpm reading inside and the engine runs rough (plus check engine light comes on). I'd like to debug it but for that I'd need to know where the signal comes from.

Thanks,

Greg

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1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)

It's on the very rear of the oil pan, driver's side. I once experienced the same thing on the highway. Tach indicated idle rpm, engine ran rough and lost some power. The whole thing lasted +- 30 seconds and never returned.

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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine)
Raleigh NC - Home of deep fried sushi!

the rear of the crankshaft - in the transmission bell?

__________________
1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)

Engine oil pan. Near where it mates to the transmission.

__________________
1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine)
Raleigh NC - Home of deep fried sushi!

I think of it more as below the oil filter.

In my car there's a wire that runs from the fender to below the injection pump then disappears behind the oil filter. Follow that wire if you can see it.

Sixto
87 300D