Jul 9, 2012 · 3.4l efi engine coolant temp sensor location... Discussion in ' 1st Gen. Tacomas (1995-2004) ' started by kgw, Mar 3, 2016.

Jan 29, 2015 · The other (engine coolant temp sensor) is for the ECU, and is located on the back of the cylinder head (pain to get at). Thanks for the info tan 4x4! So I went to the auto parts …

Feb 18, 2017 · Coolant temp sensor location Discussion in ' 2nd Gen. Tacomas (2005-2015) ' started by Darkgoatracer, Apr 12, 2020.

Oct 24, 2009 · I own a 1999 tacoma 4x4 4 cyl. 2.7L 3RzFE 5-speed. My repair manual is not clear as to where exactly the ECT (engine coolant temp. sensor) is located....

Jun 2, 2014 · P0117 sets if the Coolant Temp Sensor Circuit is shorted or Coolant Temp Exceeds 283F P0118 sets if the Coolant Temp Sensor Circuit is open or Coolant Temp is less than …

Jun 26, 2015 · If the PCM reads its engine coolant temp (ECT) from the 2 wire ECT sensor and modifies the IAC “duty cycle” for cold engine rpm what does running coolant through the IAC …

Jan 22, 2023 · The sensor is at the front of the engine where your fuel rail crosses over. This communicates with the onboard computer to tell it what your actual coolant temperature is.

Dec 15, 2019 · The ECT sensor sits on top of the coolant bypass pipe the connects both heads together located at the back of the motor. I believe a Deep 19mm Socket will remove/install …

Aug 23, 2017 · Hello Tacoma people, I need help locating the ECT sensor on a 2003 Tacoma Thank you for your help !!!

Jun 14, 2025 · Initially, codes P0128 and P0116 appeared, leading to thermostat and ECT sensor replacement. However, the issue persists, now with code P0125, and new symptoms of rough …