Discussion:
Toyota 42-5FG25 Wiring Question

I have a broken wire (the one I am holding) going to this thing next to the distributor, it is black with white stripe, does anyone know where the other end is supposed to go? I can't find any obvious clues. Anyone have a wiring diagram for this machine, or a service manual? Thanks for your help!
  • Posted 28 Aug 2025 08:27
  • Modified 28 Aug 2025 09:57 by poster
  • By pelletman
  • joined 1 Nov'08 - 57 messages
  • Massachusetts, United States
Showing items 1 - 4 of 4 results.
Thanks! Can you tell or show me where it goes?
  • Posted 20 Sep 2025 01:55
  • By pelletman
  • joined 1 Nov'08 - 57 messages
  • Massachusetts, United States
ign+ and tach signal
  • Posted 19 Sep 2025 20:00
  • By Fritzthecat
  • joined 20 Oct'23 - 24 messages
  • Connecticut, United States
Be nice to forky
I appreciate the response, looking at a wiring diagram, I think it is a ground.
  • Posted 29 Aug 2025 05:39
  • By pelletman
  • joined 1 Nov'08 - 57 messages
  • Massachusetts, United States
I will assume you have the 4Y engine.
That "Thing" next to the distributor is actually a part of the distributor (As seen in the photo provided of a brand new assembly).
I have two Toyota 42-5FG25 machines at my site too, and both of them have this spare wire that seemingly leads to nothing.
I've always been curious too, but I have two reasons to believe that it's nothing to be worried about.
  • Posted 29 Aug 2025 05:15
  • Modified 29 Aug 2025 05:35 by poster
  • By Br455Brute
  • joined 30 Nov'24 - 9 messages
  • Alberta, Canada

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