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Old 11-01-2003, 03:31 PM
stevenstevensteven stevenstevensteven is offline
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Join Date: May 2001
Location: San Francisco
Posts: 164
reading EHA current

In an earlier thread, Stevebfl said: "If you really want to watch the whole system use your amp-meter section and hook in series to read the EHA current. The EHA (electro-hydraulic actuator) is the mechanical result of all the electronic sensing. It is a controlled leak to the upper chamber pressure of the fuel distributtor."

Okay, I'm just printing out various posts as I'm about to go out and try out my new Sears DMM with Duty Cycle. My '89 260e has been experiencing power loss, runs rich (cat's smell), and I've seen the ABS light on intermittantly (already replaced OVP and cleaned ABS sensors). So now I'm going to go try and figure out how to test the system and use the DMM.

But I don't understand how to hook up the amp-meter in series with the EHA. Nor am I sure how to setup the Sears DMM for this. I've been through my CD Manual and did not see any info on the EHA, what am I missing? Can someone point me in the right direction, as I'd like to try and get through these tests this weekend. Thanks in advance.

1989 260e
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