Hose and vacuum P0120, before it was P0125?

CHRISTINASALKELD2019

MEMBER
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

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
54,191 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