780 V6-2849cc 2.8L SOHC B280F (1987)
Knock Sensor: Testing and Inspection
The knock sensor can not be tested statically. Therefore the static test is only for the wiring harness and the dynamic test is only for the knock sensor.
STATIC TESTING PROCEDURE:
NOTE: While trouble shooting, always check the wiring, fuses and connectors for good condition and routing. Use the wiring diagrams found in
CHASSIS ELECTRICAL DIAGRAMS to supplement your testing efforts.
Accessing Ignition ECU Connector
1.
Turn ignition OFF.
2.
Access ignition ECU by removing the panel under left hand side of instrument panel.
3.
Remove ECU connector by pushing out the catch and folding out the wire cluster.
Checking Ground Connections
4.
Check ignition ECU ground connections from ECU and power stage to intake manifold. They should make good contact.
Removing Protective Cover