Transmission not shifting properly and code P1725

Thanks, I would get back to you.

Hi, thanks. I removed the NT speed sensors and tested it's resistance it read 667 and 686 respectively, the voltages was extremely low. Is this a good sign? So I just cleaned it.

Hi, thanks Danny. I changed the NT sensor and all is well. I guess it was damaged a little. Thank you once again.

Sure, definitely.

I had my alternator replaced now my truck is at 4rpm when I do 60mph, anyone can help me, is it possible that the alternator has anything too do with this, and why is the rpm at 4, feels like the trannie will not change gears feels like it's stuck in 3rd. Trannie is not oringianall had it replaced severall years ago. Has around 30k miles on it. Machanic claims I need a new computer now. Trust him just not a very good mechanic

How do you know if anything is bad unless they make a mistake 2 x or more in my case that's what happened,
But the problem is still the same, not why I use the mechanic but why after he replaced the alternator my rpm are at 4 while doing 60mph. Please just looking for help

I'm reading there's a possibility that the alternator can be the issue, can anyone please help me with this as I'm at a loss and wanna resolve the issue, can anyone please help me

I brang the truck back too him and of cause he hooked up the computer and tells me now that it's the computer on the truck, I have too beleive that's not the issue, The car ran beutiful before the replaced alternator, The car is a 2001 lexus and has more sensor's then egine parts, I read that an alternator can mess with multiable parts, my suspsion is he put a cheap alternator and will not admit he messed up, Who likes too admit fault

ASEMaster6371
You seem too have a great reputaion, I would and need your expertise, via phone or e-mail. I'm willing too pay but I really need someone who knows what there talking about. Can you help. As too there a severall issues I need too have answer too

ASEMaster6371
I'm sorry I'm new too using this siteand not geting the hang of it, Yes he gave me a code of some sort but when I looked it up it said it meant that the car was being tested, keep in mind that the check eng light is on so its not giving me an ans, the check eng light is a whole other matter that I'm dealing with. But the light was on before That's when I relized he was not a good machanic, we where still dealing with that issue and being my sister uses the car she had him change the alternator, It seems the more he touches it the more I see he just guesses at the problems
All this, like I said He seems honest and was very fare in price, He worked on my Ford explorer and never had a problem with his work, I just beleive that the 2001 lexus is way out of his league

I was driving my car and the gears started slipping and then it would go passed 2nd gear and I had to drive in 1st gear as far as I could and then the car wouldn’t drive anymore. Now I can shift out of park and then it goes straight to neutral and doesn’t drive. I have had my transmission cooler replaced recently and when they did my gear shaft code was showing up. I checked the gear shaft from the inside of my car and it is intact and perfectly fine. I need help.

I don't have the code in front of me, as far as the eng light He changed the oxygen sensor, then I find out it has 3 so I brang the truck too someone else and they said it was bank 1 sensor he changed that and still the light is on, I put a new gas cap cleaned the MAF sensor and checked for cracked of leaky hoses myself, still light is on, I'm guessing It might be bank 2 sensor but mean while, Now I have too deal with this RPM before I resolve the egn light as I beleive the high RPM can kill the eng of the trasmission