240 L4-2127cc 2.1L SOHC B21F (1982)
Knock Sensor: Testing and Inspection
1.
Start engine and hold engine speed to 2000 RPM.
2.
Check timing while tapping on the engine block with a small hammer.
3.
Timing should retard momentarily while tapping.
4.
If timing does not retard, check connections and/or replace knock sensor.
