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Join Date: Aug 2001
Location: Mason, OH
Posts: 2,568
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Suggested fix for O2 Sensor Connection ?
Any suggestions on how to fix this?
When I dropped the engine I discovered that the ceramic part of the O2 sensor connector was broken and the copper wire inside was exposed (but still attached to both ends). I don't particularly want to replace the entire unit as I believe that runs to the Lamba box and I can't imagine that is a cheap part. My first thought was to clean the tarnishing and then use JB Weld to put the ends back together but I'm not sure if that would negatively impact what the ceramic was intended to do. While I am considering running with my O2 sensor unplugged I figured it would be easier to fix this now instead of later when the engine is back in just in the event it is needed. TIA. 
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Doug '81 SC Coupe |
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12-04-2003, 06:03 PM
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Location: N. Phoenix AZ USA
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I happened to be at Zim's in Dallas when we found the same thing on my 85. He had an extra harness from a wrecked car and cut it off and gave it to me. I paid the mechanic to solder it to the harness in my car (it was not easy to get to BTW) and it worked fine.
No ideas on repairing one but it sure did not look like it would hold so I replaced mine. With your engine out it would make it worlds easier and I would still try to replace it. Joe
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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12-04-2003, 06:17 PM
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Joe - when you say harness do you mean the main harness or just the wire from the ceramic connector (ie., black wire coming out the left side in my picture)? I'm thinking I could easily do the same on my black wire. Thanks for the idea.
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Doug '81 SC Coupe |
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12-04-2003, 06:24 PM
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Doug,
We just soldered the pigtail that came out of the main harness. The other option would be to split the covering on the main harness and go from there but that would be even more work. Problem was that the center wire is pretty large and a single thread with a outside shielded covering. Yours may be different but you need to have some experience in soldering before trying it. It was just a bear to get to with my car and yours would be alot easier now that the motor is out. I would call or email a couple of wrecking yards and try to get the piece off of a burned or wrecked car and go from there. Joe
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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12-04-2003, 06:45 PM
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SCWDP- Shock and Awe Dept
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I replaced it w/ a single wire connector, worked like a champ.
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Ryan Williams, SCWDP '81 911SC Targa 3.6 '81 911SC Coupe 3.2 #811 '64 VW Camper Bus, lil' Blue |
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12-04-2003, 06:53 PM
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Unregistered
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Location: a wretched hive of scum and villainy
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Mine is the same way, I understand it is relatively common. I just plug it in and it works even though the part around the connector is crumbling.
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12-04-2003, 06:53 PM
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Thanks guys. Besides dcAuto in CT anybody know of other good wrecking yards?
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Doug '81 SC Coupe |
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12-04-2003, 07:05 PM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
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20th street auto in Phoenix. They advertise in Pano. Was a thread about them and also another wrecking yard in the last day or so.
Joe
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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12-04-2003, 07:14 PM
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1981 Porsche 911SC Targa 3.6
