Mercury Repair Questions? Ask a Mechanic for Answers ASAP
Hello and thank you for your question,You have two years listed but the 1986 did not have a DPFE so I assume you are referring to a 1996, I have enclosed the test steps in the link below for testing the DPFE in the link below, copy and paste the link to your browser to open and view them. Its very common for the DPFE to fail on the 1996 as well.https://dl.dropboxusercontent.com/u/104923897/DPFE%20Nov%2011.pdf
Yes you check the voltage at the electrial connector, can you tell me what type of problem you are try to correct?
If your checking the DPFE then you check it at the connector on the DPFE with the DPFE plugged in. Can yo tell me the actual code your getting?