roundhouse

Exactly where is this sensor located on the 3.4 V-6?


I was getting a code for a bad o2 sensor, but no longer am, and now Im getting one for a bad temp sensor.

Gotta pass the smog check soon, thanks.

J2F42C

I could not find the link from the online FSM so here you go. Just make sure you buy an OEM ECT/water temp sensor and new gaskets if you take off the front fuel pipe....

roundhouse

Thanks for the pic,

I need to replace the gaskets on the fuel line?

WHeres the cheapest best place to get the sensor?

Im guessing not at the stealership.


I just swapped the sensor with one from the 3.0 I recently yanked from a 95 runner, but that didnt change anything, apparently its a bad sensor as well.

is there a way to test the sensor?

J2F42C

Here is the procedure. No, one must get the OEM ECT sensor from the dealer as far as I know. You can try 1sttoyotaparts.com for a cheaper price.

Just curious, how did you get the old one out?

The numbers on the Y axis on the graph are measured in Kohms....

roundhouse

I just removed the crossover fuel pipe and removed the sender.

scuba

http://www.ncttora.com/fsm/2003/index.html

javadoody

timely advice, thanks, i just through a 128 code last night. coolant temp below thermostat regulating temp--i figure it can't be anything but the ect but didn't know if i trusted one from autozone.

michalik_piotr

old theread but i just got off the phone with a parts guy here at lk city toyota and he read the same code (that i got today, 125) and after talking about cooling system temp it went and said that its the front o2 sensor that is actually at fault. hoping to clear this up.
i went ahead and cleaned my MAF instead and cleared out the code by disconnecting the batt. sor fat its gone but i suspect it will come back.