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Old 08-08-2000, 03:30 PM
5banger 5banger is offline
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Join Date: Jun 2000
Location: Tucson, Arizona, USA
Posts: 180
Search the threads--there are a few recent posts with good details (a 300e, I think.) The basic idea is to remove the air filter, look for the Electro-Hydraulic Actuator (black box, 2 pins, mounted to the firewall-side in my case), hook an ammeter in-line with the circuit, and measure current. I seem to remember it was ~20mA with the key-on-engine-off. In the case of my '89 2.6, it was actually the EHA itself that was worn out, but I needed an OVP in the case of my 2.3. Hope this helps--the other threads explain better, Andrew Seidel.
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