940 L4-2.3L SOHC VIN 88 B230F (1992)
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.
