Check Engine Light
Yeah, it should only run until the coolant temp gets up a little bit, then shut off.
The engine light came on again this morning. I will run the code to see if it's just posting P0410 error. I'll upload the results later tonight.
Thanks pioneer4x4 for your reply
It's a great reader! If you can please post your O2 sensors I would like to compare my data to yours.
Front, center, top of the engine. It has a lifting ring cast into it.
And when I first heard mine, I thought something was wrong, it is a pretty noticeable sound.
Yea, you can't miss the sound. With the fuse pulled, the car will generate a P0410 or P0401 code (can't remember which and I'm too tired to look).
If that pump runs when it shouldn't, then yes, the O2 sensors are going to see stuff they should not.
If that pump runs when it shouldn't, then yes, the O2 sensors are going to see stuff they should not.
I now see what it looks like (via the service manual) I will put the fuse in tomorrow and see if the pump stays on.
Just a thought.... When the O2 sensors were replaced could they have plugged them in backwards. Bank 1 Sensor 1 is plugged into Bank 1 Sensor 2 on the PCM?
Ooooh, if that is it, that would be a great call, it does sound like it could cause his odd readings. I'd have to look and see if the wiring is close enough to reach, have you?
I am not excatly sure where to look. I l
Could you snap a pic of your 02 sensors connecting into the PCM. I will verify mine matches the same color code.
They are both located right after thier respective catalytic converters.
I doubt the wiring would reach. But I was wrong once.
It was a Thursday, I believe...
I doubt the wiring would reach. But I was wrong once.
It was a Thursday, I believe...
I'll have to wait till tonight or tomorrow morning to look. Anybody else have theirs handier?
Does this help?

And I don't know what color WL is, According to the Service Manual the only thing close is "WT" for White
BR = Brown
DG = Dark Green
YL\BK = Yellow & Black...

And I don't know what color WL is, According to the Service Manual the only thing close is "WT" for White
BR = Brown
DG = Dark Green
YL\BK = Yellow & Black...
Last edited by pioneer4x4; Sep 18, 2015 at 11:12 AM.
Great schematic thank you for posting it. As for the O2 sensors I wanted to see how they connected into the PCM inside the fuse box. I am not sure if there is a way to miss wire it.
At time 377.2, notice how both bank 1 O2 sensors go to 0V, you might have a ground issue, or a short to ground issue. Just a guess, but I have seen an engine harness rub through and cause issues only under full access when it rubbed a certain way, but looked fine under the hood parked.
A weird ground issue may also explain the other sensor going weird. But as you mentioned Bluetooth OBD2 isn't perfect either.
A weird ground issue may also explain the other sensor going weird. But as you mentioned Bluetooth OBD2 isn't perfect either.
Thank you for your reply. I'll check it out later today.


