Hopefully I fixed it... the connector beside the air filter box was all full of green rust and a couple of the wires snapped off of it when I moved it. I replaced it with crimp connectors and wrapped them up good with electrical tape.

1986 Isuzu Trooper, 2.3l, 119k miles when acquired 3/1996, 231k at time of death 9/21/03.
1995 Jeep Cherokee Sport 2-door 4x4, 4.0l, 5-speed, 85k miles when acquired 11/2003, 138k now.