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fifthorkid
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JUL 05, 12:48 PM
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 So I located this cable hanging from the rear of my vehicle and don't know what it is, where it goes and why is disconnected? Also was a loose bolt that was laying inside the engine compartment. Car starts and runs fine. At the time I was disconnecting the TCC Solenoid to see if it solves my issue with overheating and shutting down. All I did was unclip the TCC connector and while I was under, I noticed these as well.
Anyone recognize these? [This message has been edited by fifthorkid (edited 07-05-2023).]
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Frenchrafe
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JUL 05, 02:47 PM
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1st picture looks like what's left of your broken 02 sensor!
2nd: no idea?------------------
"Turbo Slug" - '87 Fiero GT. 3800 turbo. - The fastest Fiero in France! @turboslugfiero
https://youtu.be/c4Cu7_2OgYc
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Patrick
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JUL 05, 04:08 PM
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| quote | Originally posted by fifthorkid:
So I located this cable hanging from the rear of my vehicle and don't know what it is, where it goes and why is disconnected?
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As has already been stated... yes, that's what's left of your O2 sensor. Is your Check Engine light not working?
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fifthorkid
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JUL 05, 04:30 PM
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Thanks, that's exactly what it was. My check engine light was coming on. But I've been having the stall issue when driving a few miles then the car will stall at a stop sign or traffic signal. Looks like I've narrowed that down to the TCC Solenoid. Deciding whether to try unplugging it and not worrying about it, or replacing it. Car is not a daily driver. Just weekends and car shows.
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Patrick
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JUL 05, 04:48 PM
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| quote | Originally posted by fifthorkid:
Thanks, that's exactly what it was. My check engine light was coming on.
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There's a good chance that checking the Trouble Codes would've pointed you in the right direction. 
| quote | Originally posted by fifthorkid:
... issue with overheating
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| quote | Originally posted by fifthorkid:
Looks like I've narrowed that down to the TCC Solenoid. Deciding whether to try unplugging it and not worrying about it, or replacing it.
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Running without a functioning TCC Solenoid will only make any overheating issue worse (due to higher engine RPM while cruising). If your engine is actually overheating, that needs to be resolved as well.
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A_Lonely_Potato
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JUL 05, 06:26 PM
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lean condition from lack of O2 would make it run hotter right?
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Patrick
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JUL 05, 07:09 PM
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| quote | Originally posted by A_Lonely_Potato:
lean condition from lack of O2 would make it run hotter right?
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I'd suspect that no O2 sensor signals would result in an overly rich "limp" mode... but I certainly don't know for sure.[This message has been edited by Patrick (edited 07-06-2023).]
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olejoedad
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JUL 05, 09:34 PM
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| quote | Originally posted by A_Lonely_Potato:
lean condition from lack of O2 would make it run hotter right? |
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More air=lean
Lack of O² would be rich.
Lean does run hotter.
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A_Lonely_Potato
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JUL 06, 02:03 PM
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| quote | Originally posted by olejoedad:
More air=lean
Lack of O² would be rich.
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i was for some reason thinking along the lines of the ECU being stuck on whatever the last o2 signal was, and if it was reading a bit richer at the time, get stuck on that, it would be trying to lean out constantly. dont ask my why haha
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