O2 sensor

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SSmooth84

Greasemonkey
Mar 12, 2019
112
43
28
Sandiego,California's
Take a wider picture showing the source of that wire.

I don't think the O2 sensor wire would come from the top of the engine, it would have to cross the manifold and eventually get cooked. I would look for the wire coming from a loom on the firewall or the inner fender.
Take a wider picture showing the source of that wire.

I don't think the O2 sensor wire would come from the top of the engine, it would have to cross the manifold and eventually get cooked. I would look for the wire coming from a loom on the firewall or the inner fender.
The wire seems to run behind the distributor i had used electric tape to secure the wire harness and this was taped toward the front of the engine thats why I couldn't find it. Its the only wire I see that could be it how can I test it to check if Its sending signal/power to see of its actually working. I'm still waiting on the sensor.
 

SSmooth84

Greasemonkey
Mar 12, 2019
112
43
28
Sandiego,California's
I tested the wire and only reading i got when the ignition was on was 0.397 I even used a test light but nothing came on. Is this the normal reading.
 

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ELCAM

Royal Smart Person
Jun 19, 2021
1,114
1,249
113
I have no idea what the reading will be I don't have a CCC car to test. I would never use a test light on a computer circuit, it could draw too much current and damage the computer. The multimeter has a high input impedance and should be fine to use.

This is the replacement connector the connector pin matches what you have and the rubber weather pack seal seems to match what you have left on that wire.

O2 connector 84 CCC.jpg
O2 connector 84 CCC2.jpg
 

SSmooth84

Greasemonkey
Mar 12, 2019
112
43
28
Sandiego,California's
I got my sensor and am getting ready to install it i got a quote from the muffler shop for the bung. Ill be connecting it with key on to the fuse box , ground to the engine block and the main sensor. How can i make sure im hooking it up to the main sensor the only reading I got from that wire was in my last pic. I want to make sure its getting hooked up to the 02 sensor wire not trying to mess anything up. Anyway of testing it to see if it really is that wire ?
 

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