1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

What is this switch for?

Thread Tools
 
Search this Thread
 
Old Jul 26, 2014 | 09:41 AM
  #1  
rkhanso's Avatar
Thread Starter
Full Member
 
Joined: Jul 2014
Posts: 79
Likes: 0
From: MN
What is this switch for?

My son's new/used '81 RX-7. I The wiring is a mess. I was wondering what this switch is for?


Last edited by rkhanso; Jul 26, 2014 at 09:44 AM.
Reply
Old Jul 29, 2014 | 12:12 AM
  #2  
LongDuck's Avatar
84SE-EGI helpy-helperton
Tenured Member: 20 Years
Liked
Loved
Community Favorite
 
Joined: Oct 2002
Posts: 3,584
Likes: 542
From: Phoenix, AZ
Throttle Position Sensor, aka TPS. Normally, there's a bent metal bracket which mounts this in position that the plunger presses against a cam. As the throttle is increased, the cam pushing on the plunger, telling the ECU where the throttle is expected to be.
Reply
Old Jul 29, 2014 | 09:02 AM
  #3  
rkhanso's Avatar
Thread Starter
Full Member
 
Joined: Jul 2014
Posts: 79
Likes: 0
From: MN
Thanks for that. Is it needed? A bunch of the emission stuff has been removed. It has a racing beat intake manifold and a holley carb, if that matters.
Reply
Old Jul 29, 2014 | 10:39 AM
  #4  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,833
Likes: 3,232
From: https://www2.mazda.com/en/100th/
Originally Posted by rkhanso
Thanks for that. Is it needed? A bunch of the emission stuff has been removed. It has a racing beat intake manifold and a holley carb, if that matters.
the TPS basically runs the vacuum advance solenoids, shutter and air control valves, so if you don't have those, then you don't need the TPS.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FC3S Timmy
2nd Generation Specific (1986-1992)
8
Oct 2, 2015 08:08 AM
Snook
3rd Generation Specific (1993-2002)
23
Sep 30, 2015 11:36 AM




All times are GMT -5. The time now is 03:11 AM.