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> SOLD 1975-76 catalitic converter relay with harness
Geezer914
post Feb 15 2012, 07:00 AM
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1975-76 catalitic converter relay and harness. $20 plus 6.35 shipping USPS priority mail.


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914runnow
post Feb 15 2012, 07:18 AM
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Sold..Payment to???
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bdstone914
post Feb 15 2012, 08:52 AM
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QUOTE(914runnow @ Feb 15 2012, 07:18 AM) *

Sold..Payment to???


So what does that relay operate?
I know the CAT itself is not electric.
Is it related to the box on the passenger floor that trips the light?
Bruce
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sean_v8_914
post Feb 15 2012, 09:03 AM
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the box in the PAX foot well is a mile counter. the speedo cable goes thru it. it triggers the EGR service light every 30,000 miles
The sensor which controls the catalytic converter
temperature is bolted directly to the catalytic
converter and is connected to this relay, which is
located next to the left taillight housing.
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sean_v8_914
post Feb 15 2012, 09:03 AM
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this also triggers the CAT high temp warning light next to the tach
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914werke
post Feb 15 2012, 10:16 AM
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QUOTE(sean_v8_914 @ Feb 15 2012, 07:03 AM) *

the box in the PAX foot well is a mile counter. the speedo cable goes thru it. it triggers the EGR service light every 30,000 miles
The sensor which controls the catalytic converter
temperature is bolted directly to the catalytic
converter and is connected to this relay, which is
located next to the left taillight housing.



Hmmm Ive never seen this ... do you have a pic of a installed setup?
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zonedoubt
post Feb 15 2012, 10:42 AM
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QUOTE(sean_v8_914 @ Feb 15 2012, 07:03 AM) *

The sensor which controls the catalytic converter
temperature is bolted directly to the catalytic
converter and is connected to this relay, which is
located next to the left taillight housing.


Doesn't control, just measures. The sensors are usually burned up, I've been unsuccessful finding a replacement.
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914work
post Feb 15 2012, 12:18 PM
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So it attaches here?



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sean_v8_914
post Feb 16 2012, 08:34 AM
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that paragraph is cut and paste from factory manual so if its wrong, talk to wofgang or Hans
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sean_v8_914
post Feb 16 2012, 08:56 AM
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the sensor goes in teh cat where your plug cap is. the relay lives in teh rear trunk under teh left tail light biased toward the center. the sensor completed the relay circuit to trigger teh light on the dash next to the tach. I tried to paste a pic...
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sean_v8_914
post Feb 17 2012, 08:35 AM
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the sensor is a bi-metallic switch. Mc Master Carr has them. the question is: what temperature do we need to complete the circuit to trigger teh relay? at what temp is a CAT too hot?
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914work
post Feb 17 2012, 12:53 PM
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So that port is on the muffler section on the inlet side of the CAT, not on the CAT itself.
The Port for the EGR feed pipe is on the Outlet side just before the final section & tailpipe.
From what I understand shouldn't excessive cat temps be measured at the output, which would indicate too much un-burned hydrocarbons?
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matthepcat
post Feb 18 2012, 03:26 PM
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Sweet. Always wondered what that was on my 75
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914werke
post Feb 18 2012, 06:20 PM
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Hey Admins, perhaps this should be moved to the Garage since it has turned into a more informational/discussion thread than an classified ad?

If thats OK with the Geezer?
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914runnow
post Feb 19 2012, 01:17 PM
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QUOTE(914runnow @ Feb 15 2012, 06:18 AM) *

Sold..Payment to???

Hi there...still awaiting info for payment to?? (IMG:style_emoticons/default/confused24.gif)
Thanx Rx
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sean_v8_914
post Feb 20 2012, 10:36 AM
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if it moves, Ill take pics
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914werke
post Feb 20 2012, 02:41 PM
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QUOTE(zonedoubt @ Feb 15 2012, 08:42 AM) *
Doesn't control, just measures. The sensors are usually burned up, I've been unsuccessful finding a replacement.
They are available new link
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zonedoubt
post Feb 20 2012, 02:54 PM
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(IMG:style_emoticons/default/idea.gif) Hmmm...must be a new product for them.

QUOTE(rdauenhauer @ Feb 20 2012, 12:41 PM) *

QUOTE(zonedoubt @ Feb 15 2012, 08:42 AM) *
Doesn't control, just measures. The sensors are usually burned up, I've been unsuccessful finding a replacement.
They are available new link
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914runnow
post Feb 24 2012, 12:18 PM
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QUOTE(914runnow @ Feb 15 2012, 06:18 AM) *

Sold..Payment to???

Hi There..would still love to get this..
Thanx Rx (IMG:style_emoticons/default/piratenanner.gif)
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Geezer914
post Feb 25 2012, 09:11 AM
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914runnow sent you a PM.
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