Did you check the codes for the CEL? Maybe it is related to the transmission!

 

I wish but they werent. These are the codes I got p0125 p1133 p1135 p0171 p1130 p1135. All O2 related but I'm fixing that soon as I find a denso O2 sensor for a CA compliant upstream. Know where to get one with the wire?

 

off to the tranny shop...

 

Check Amazon, sometimes they do have Denso sensors listing!
If your fluid is dark with particles floating in it, that is not a good sign. Usually, if transmission fluid with particles floating around means there is a clutch pack coming apart or burnt.

 

That's my worst fear at this point. Here's a picture of the fluid. Not seeing any particles anymore. Might have been mistaken. I'll check when it's hot again.

 

Well, if you don't see any particles in the fluid when you check again, might give fluid change another try, maybe a few drain and fill over a period of time. Won't hurt to try at least!

 

Indeed. Gonna go this route tomorrow. Will update around 12 in the afternoon Cali time.

 

That looks like just a close-up shot of the sensor body. Unless it says that it is a universal part without a plug you should be good to go. I bought genuine Denso sensors from Rock Auto for my van with Cali emissions, and for my Solara. They are performing as they should, no problems. Be careful with parts from the jungle site. I've heard a lot of stories about counterfeit parts being sold.

Sent from my moto g power (2021) using Tapatalk

 

Don’t buy any critical parts from E-bay. The only thing they are good for automotive wise is cheap crap, Accessories and fake garbage. Buy genuine Denso from an established parts supplier, maybe even Denso themselves. You should be able to get one that has the correct length and plug. Might be a bit more expensive than your looking for, but thems the breaks.

 

when you change the fluid add a bottle of Lubegaurd Red to it.

you really need to sort out all those codes.

 

Well things got worse. I changed the fluid and now it's slipping even more and it even stalled and died. Most times when I accelerate it wants to stall out. This all happens in first gear. Here's a video

am I screwed? Do I need a new transmission? Any help would be greatly appreciated. Also just ordered the O2 sensor today and it'll be here monday.

 

So I'm just now learning that all of these problems could potentially be caused by a bad O2 sensor. If what I read is correct, and correct me if I'm wrong, a slipping transmission will not cause the engine to stall. What could be causing this is improper air to feel mixture, thus causing the engine to not get enough power and therefore stalling. And something tells me this could also cause transmission problems, like slipping. If the engine isn't producing enough power maybe enough power isn't being supplied to the transmission to cause proper shifting. Does this sound like I'm on the right track? This is what it sounds like to me but I could be wrong.

 

>> And something tells me this could also cause transmission problems, like slipping. If the engine isn't producing enough power maybe enough power isn't being supplied to the transmission to cause proper shifting.

I had an 05 Avalon that sometimes had odd shifting pattern, including very delayed shifts. Using premium fuel killed the shifting problem, but that extra cost/gallon was nasty. Several years later the MAF failed, replacement MAF made whole thing smoother, better acceleration, blah blah. Tried a tank of regular gas, no shifting problems. My thinking similar to yours, car was running too lean, not producing the power output the transmission was expecting at given RPM.

 

Makes sense to me. I fixed what was wrong. Tranny fluid was too low and changing the O2 sensor fixed both problems