Electrical sensor in intake manifold

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sdebaker

Electrical sensor in intake manifold

Post by sdebaker »

1977, non-catalytic Spider. There is an electrical sensor, similar in style to a temp sensor, mounted in a hole in the underside of the intake manifold. It has two male spade terminals on it. I believe it was not hooked up, but the engine ran.

What is this switch supposed to control? How important is it?
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BEEK
Posts: 1833
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: Electrical sensor in intake manifold

Post by BEEK »

it is part of the emissions controls. if they have been disabled or removed, ignore the switch, will not hurt anything.
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider , 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
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focodave
Patron 2018
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Posts: 704
Joined: Sat Jun 30, 2012 10:35 am
Your car is a: 1980 Spider 2000 F.I.
Location: Fort Collins, CO

Re: Electrical sensor in intake manifold

Post by focodave »

disregard
1980 Spider 2000 F.I. (my hobby)
1970 MGB GT (my other hobby)
2008 Ford Expedition (daily driver)
2019 Harley-Davidson Electra Glide Standard
2019 Harley-Davidson Iron 883 Sportster
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vandor
Posts: 3996
Joined: Sat May 23, 2009 1:23 pm
Your car is a: 1971 124 Spider
Location: Texas, USA

Re: Electrical sensor in intake manifold

Post by vandor »

Temp sensor for switching between the two sets of points. Not needed.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
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