I pulled a vacuum of 8 Hg inches with no leak,made the engine start to stall with vacuum gauge drawing a vacuum.My Haynes manual describes trouble shooting the EGR control solenoid. I had two jumper wires connected to the seperate battery posts on my car. I made sure they worked by jumping a test light with the two wires with success. The manual says to disconnect the 4 pin connector (my car only has 3 connectors) from the control box and check for battery voltage on the black/yellow terminal on the harness. With the ignition turned on I found voltage at the connector.
The next step which is checking to see if the EGR vacuum solenoid is working said to reconnect vacuum gauge to the vacuum hose,start engine and idle.I connected the hot jumper wire to the A terminal on the 4 pin connector or in my case a 3 pin connector. While observing the vacuum gauge I ground terminal B with the other jumper wire and saw no vacuum increase. The manual says it should increase in vacuum within one second. I tried other combinations to make sure in case I was touching the wrong connectors and nothing. There are only so many combinations and then your done.
I have a brother who lives in Arizona and has a 1991 Accord he is working on but they dont have smog testing but the car has a EGR control solenoid on it. He has offered to send it to me in the mail and see if it works. If it does I can send him my old one because even though it doesn't work he has no test to worry about. Auto Zone wants $229 for one.Is it simple to pull off the EGR control solenoid? Is there anything to replace when he pulls it off? Gaskets? What do you think of my plan and does it sound like a solenoid to you? Thanks