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#1
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Resetting the EHA
As the title suggests, is it possible to reset the EHA to factory value?
I'd imagine so but I think it would require checking lower chamber pressure against some spec under some condition? I'm tracking down some low fuel economy on my 190E 3.0. Its current around 200-220 (I dont recall the exact number on my odo--but not higher than 220) to just under 3/4 tank. I'm planning on doing a tune-up soon, however someone mentioned the EHA might be responsible. I have two of them, I know one is adjusted and one is not. I'm not sure which is which anymore. -Kris
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#2
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Lower chamber pressure needs to be about .4BAR lower than the upper chamber's reading.
http://www.ps2cho.net/downloads/MB%20CD/W124/w124CD1/Program/Engine/103/07.3-1603.pdf
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