July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Catalytic Converter Temperature Probe

Unplug temperature probe connector under driver's seat. With engine warm and idling, measure resistance across probe terminals. Resistance should measure 2, 000 - 200, 000 ohms.

NOTE: Insert ohmmeter probes into rear of connector to avoid damaging contacts.

Fig 1: Vacuum Switching Valve Test Connections