Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Inspection of Knock Sensor
Fig. 27 Testing knock control sys. with substitute knock sensor:
1.
Check the retard function.
2.
If the ignition timing does not retard, go to next step.
3.
Disconnect the
knock sensor connector.
4.
Connect a good
knock sensor to the vehicle and ground the sensor
Fig. 27.
5.
Tap the sensor and make sure the ignition timing retards.
6.
If the retard operates, replace the
knock sensor.
