[JK McDonald]

Hey John - Just to back up a bit and verify something once again - Are you saying that you've checked the compatibility of the Computer and the AFM Part Numbers ? Verified that the "Pin Out" connections are correct between the computer and the AFM ? Bench checked the AFM ? Verified that there are no injector wires shorted to ground (computer, AFM, injector plugs disconnected) - Wrung out the wiring harness for good continuity between each wire from the computer connector to the AFM connector (computer and AFM plugs disconnected)- tested for "NO Shorts" between any of the AFM wires - (computer and AFM plugs disconnected) AND there are "NO Shorts" to ground between any of the AFM wires and the vehicle chassis. Verified that only pins 5, 16, 17, 23, 35 of the computer connector are ground (computer and AFM plugs disconnected) ?

One other suggestion to keep from adding any additional problems - You may have noticed the bent or distorted connector plug pins of your AFM. If you stick the round test probes of your multi-meter in between the Bosch style female connector pins they can be distorted and/or severely damaged. This pin damage along with any frayed or brittle wires up in your harness can affect the reliability of the control signals between the computer and all it's needed input sensors. The electrical contact pin tension of the Bosch female connectors are designed to accept "Flat" male pins of a specific thickness.

When checking the reference and control signals at each L-Jet connector it's best to use a piece of safety wire that has been flattened on one end with a hammer. Then attach a short length of generic test lead with a pair of alligator clips to go from the flattened piece of safety wire in the connector plug to the round multi-meter probe. Often a missing input signal makes the older analog L-Jet fuel injection computers go really stupid. The newer Digital computers typically have a "Limp Home Mode" to fall back on if there's a component or signal failure.

Good Luck, Michael