Hose and vacuum P0120, before it was P0125?

Tiny
CHRISTINASALKELD2019
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  • 2002 TOYOTA SEQUOIA
  • 4.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 185,000 MILES
I have a code po120, before it was po125. I'm reassembling the throttle body after replacing the throttle position sensor. I cannot remember the house and vacuum line placements
Monday, December 8th, 2025 AT 7:41 PM

4 Replies

Tiny
KEN L
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  • 54,882 POSTS
So these are two separate problem, please start a new thread for the P0125 code. Here are the vacuum line diagrams so you can make sure they are on correctly, but this code is not because of the vacuum lines, I would make sure the electrical connector is on securely and if so can I ask if you had this code before you started? If not and the connector is in good shape, (no corrosion - pulled pins) I would get another TPS sensor because you got a defective unit.

P0120 - Throttle Position Sensor Circuit
P0125 - Insufficient Coolant Temp for Closed Loop

Clear the codes once completed to see if the P0120 code comes back. Please let us know what happens.
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Tuesday, December 9th, 2025 AT 11:27 AM
Tiny
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I'm sorry, I don't see the vacuum line diagram
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Thursday, December 11th, 2025 AT 11:41 AM
Tiny
CHRISTINASALKELD2019
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Here's a pic of my engine compartment
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Thursday, December 11th, 2025 AT 11:45 AM
Tiny
KEN L
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I can see the hose that goes to the throttle body in the first image, here is the only vacuum diagrams they give us. I would look around for any open lines and see where they might go length wise. Check out the images (below).
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Friday, December 12th, 2025 AT 8:18 AM

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