940 SE L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT (1991)
Fig. 168 CONTROL UNIT WIRING FOR E.G.R. SYSTEM
9.
If reading is different, check wiring and repair as necessary. If wiring is in good working condition, replace and retest with new sensor.
10.
After testing, disconnect all test equipment, reconnect all connectors (including the ECU connector) and remount all panels.