Operation CHARM: Car repair manuals for everyone.

Tools - Oxygen Sensor Testing Adapter Revised

Group: 25

No. 82-03

Date: February 2, 1982

Subject: Oxygen Sensor

Key Points: Special adapter needed for checking voltage

Oxygen sensor operation checking may require special adapter to pick up signal at test connector. Such adapter should be fabricated locally.

Parts required

1 connector housing, 3 pin, VW Part Number 113 919 11
1 round connector sleeve, VW Part Number N. 017 5934
1 insulated clip
1 10-inch length of hookup wire (18 AWG or larger)





- insert wire connector into terminal marked II as shown

Note:
When checking oxygen sensor system, always check for good ground

Particularly important on the Type 911 SC is the ground connection on the intake manifold at left rear of engine compartment.