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Old 05-25-2013, 05:24 PM
bricktron bricktron is offline
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Join Date: Apr 2011
Location: SF, CA, USA
Posts: 935
so no, not with a multimeter. the waveform is just a sine wave, but you need to be able to count the periods, so an oscilloscope is the right tool for visualizing it.

are you trying to replace the EGR computer? i put an old-style tach amp on my '85 engine.
'77 240D, 504H, OM617.952, etc.
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