The final episode of my trying to pass emissions saga ended with
a new airflow meter and a new set of ignition wires and plugs and
a trip to a highly recommended garage in Phoenix.

I can't say for sure which bit did the trick. The shop said that
they just tuned it up using the scope. The wires and plugs <looked>
good, but I replaced them anyway. The old AFM checked out, but the
dealer said I needed a new one for $580, but since I could get
one for <much> less at Bus Depot I decided to go ahead and give it
a try.

I replaced:
1. Throttle position switch.
2. Oxygen sensor.
3. Oil & filter.
4. Air filter.
5. Oil breather tower.
6. Distributor cap and rotor.
7. Thermostat.
8. Checked plug gap.

>hadn't passed yet<

9. AFM
10. Plugs & wires.

I repaired:

1. The electrical connector to the distributor.
2. The interference between the A/C bracket and the
        connector to the distributor.

note: Apparently, the connector had broken because it
        was bumping up against the A/C bracket. I fixed it
        using epoxy and fiberglass tape. I ground down the
        aluminium bracked using a rotary file on my drill motor.

John-Reed Maffeo '86 Syncro - Glacee
Mesa, AZ