[SickIan]

Originally Posted by ossiblue

Here's and easy test for the AFS. Remove the air filter. Hook up a test for the ground at terminal 85 (either a test light or multimeter.) With the ignition "on" and the relay removed, check the ground at 85--it should be grounded. Now, have someone gently lift the sensor arm in the intake. You should lose the ground connection as soon as the lever moves upward. If that checks out, your AFS is working.

Okay, now that the AFS is plugged in, you've done all of Tony's tests and they check out and you also now have a grounded terminal 85. Let's go step-by-step and you may need an assistant.

First, turn on the ignition and listen/feel for the relay to click. If it does, go to next step.

Remove the relay and using a test light, test terminal 87 while someone cranks the starter. There will only be 12 volts at terminal 87 while the starter is turning so this may take two people. Report your findings.

By all accounts, if your voltage tests have checked out, there is voltage during cranking at terminal 87, and the relay is good, the pump should go on.

Everything checks out except for the ground. 85 is grounded when in on, but lifting the plunger the ground doesn't disappear...