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
Main Oxygen Sensor
Oxygen Sensor(s) Circuit:
OXYGEN SENSOR INSPECTION: 1.
WARM UP ENGINE.
-
Allow the engine to warm up to normal operating temperature.
2.
INSPECT FEEDBACK VOLTAGE.
-
Connect the positive (+) probe of a voltmeter to terminal VF1 of the DLC1, and negative (-) probe to terminal E1.
-
Do the test as follows:
Main Oxygen Sensor Test:
