How to Service Throttle Body Housing Toyota Prius 2004-2009 FIX Code P1121
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- Опубліковано 19 чер 2024
- Here is a great video tutorial on how to clean and service your throttle body for a Toyota Prius 2004-2009. This is also where to start if your car is throwing the P1121 trouble code. Since this fix is nearly free it is the "go to" for a P1121 throttle pedal positioning sensor trouble code. Thank you so much for watching!
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*Disclaimer: Please use all safety precautions - Авто та транспорт
Wire brush to clean the throttle body? Not me... I don't want to permanently mar the chamber with fine scratches as it could effect the close tolerances and thus the performance. Turn the spring and open the throttle plate and clean it with your chemical soaked rag and/or a non-scratch synthetic bristle brush that is chemical resistant.
Thanks for the good instruction video. After 222198 km my Prius1 start for 20 seconds and than shut down. I cleaned the mass air flow sensor and the throttle body housing in it runs like a new one. Thanks a lot !
Thanks for the great video. It was also nice to see your watch as it gave me an idea of how long each thing took as I could see the time a number of times through the video.
I am grateful for this video. I had a throttle damage, the car had a terrible engine noise. with this video I fixed it myself in a hour... THANKS!!!!
Great to hear!
I used this video to replace my throttle body with a referb. I'm relatively handy with a car (more so than the average person) but this was my first time. Couldn't find anything to clamp the right and left coolant hoses so I lost some. But I had a half container of coolant so I just refilled the reservoir after. Cleared the code on my OBD2. I'll be driving a lot tomorrow to make sure it doesn't come back. It shouldn't since I changed the part out but we'll see. Haha
And it saved me a 2 hour, $270 labor quote. Lol confident now I can knock it out next time in under an hour once I get some proper hose clamp tools and am not fighting the mosquitoes.
Nice work! 270 bucks saved is a lot! Thanks for watching!
P1121 on a Prius has nothing to do with TB. Either low coolant or coolant control valve failure. TB cleaning is indicated by P3190 and/or P0A0F.
A full scan tool will tell you that P1121 is: "Throttle/pedal position sensor/coolant flow control valve position sensor circuit stuck"
Alldata and Mitchell both go with it being for the coolant control valve.
@@xgcskiman Techstream and the Toyota Information Service indicates "Coolant Flow Control Valve Position Sensor Circuit Stuck".
Absolutely!
Great video. I'm going to try this and hope it works for me. The dealership said I need to replace it and wanted to charge me $850. I'll give you a update afterwards
how did it go?
@2carpros hello, today p1121 came out, I have erased it with the scanner since it has always given me that it is the coolant pump, however a few kilometers after walking it I have got the p0a08-264 and p3108-535 and I would like to to know if you have any idea if they are related to p1121, or if you know what might be happening with those other 2 codes and how to repair them. Thanks for the help
The video title is misleading and will cause somebody to waste their time. P1121 has nothing to do with this video/procedure, it refers to the 3 way coolant control valve not the throttle body.
@@Beach-Photo-Video Stick to your beach photos, you clearly never diagnosed or fixed this issue. Do some research then go back and delete your post.
Is there a reason why we can't attach the hoses that leak fluid first prior reattaching the throttle body housing?
I have a 2005 Toyota Prius want to buy scan tool please advise me which one should I buy because I want to keep it for another 5to10years.only 75000kms on it.thx for your advice
There's also a 10mm bolt holding the clamp on the short rubber hose under the airbox. The clamp needs to be loosened before airbox is removed.
Thanks for the helpful video. I've read that tinkering with the throttle body can cause codes if you leave the 12V attached. Did you have any problems?
Constructive feedback: in some parts of the video, less zoom would have been better.
Thanks for watching! Yeah it is a good idea to disconnect the battery you are correct.
Feedback taken! Thank you. I will not zoom in as much in the future.
hi, I like your video. I wounder if this throttle body has idle air control valve? thanks
Thanks for the like! Yes I believe it does. Thank you for watching!
Great vid man! Helped me replace my wife’s throttle body and resolve a P2103. Thank you!
Does the throttle body have to be re-programmed or does it learn on its own?
Nice work Aaron!
It will relearn on it's own no problem. That's what I did on this one, no tricks or computer messing with.
Does any re learning have to be done
hey! i know this was posted a few years back but just wondering if i could get some assistance. I did the full service but after I had everything back to where it was supposed to go i turned the car on and it had a really high idle once in gear. any idea as to what this could be.
Make sure you didn't leave a vacuum line unplugged. Thanks for watching!
Same code, same fix, ty
Quick question, is it mandatory to take the unit out to clean it? The area you cleaned was exposed and could be cleaned with out taking it off completely. Unless it’s a huge problem if cleaner drops down into the unit under it. Lmk thanks!
I'd take it off. Thanks for watching!
Thats an exellent question. He didnt really answer your question tho. Lol
Not a problem at all, the car will run rough then will idle afterwards. The only problem is dropping something into the plenum
I've cleaned dozens, and I've never taken one off. This is a five minute job with a pee break halfway through.
Hi What about the gasket
Question, if your throttlebody sensor is bad, can you only change out the sensor or do you have to change out the entire throttlebody for this car 2005 Prius?
You can just change the TPS. Thanks for watching!
Would one need to do a throttle body service / clean on a hybrid that is 16’ and has only 40,200 miles on it?
If it’s throwing a code I would. But otherwise that’s a pretty young car to need this service. Thanks for watching!
@@2carpros hey thank you for your response. I don’t know if it’s throwing me a code, i get my car service by a third party and they also sell additional services so I’m not sure if they are trying to drain me dry financially or if the car actually is requiring this service. You’re the second person to say that my car is young. I haven’t been having any issues either. It’s well maintained, i follow my carfax reports and alerts to manage the services my car needs.
Was this the p2103 code?
My mechanic said I had to replace it because the engine light came up and that's what the code says. Just like it happened in the beginning of this video .my question is.. .he erased the engine light on the board but days later came up again. What the worse that can happen if I don't do nothing and keep driving for a month or so . ? I'm gonna talk to him to ask him to clean it just like you did instead. But what's the worst could happen if o don't change it .how long do I have to change it ? 2 months ?
So if you just erase the code and don't fix anything the code will just come back. I would try just cleaning it first, worked for us. Thanks for watching Carlos!
I have read the p1121 code as being for the coolant control valve, how can you tell the difference?
Hi Dobhran, what was your P1121 about? I got this code on my prius a few days ago, I thought it calls to replace the 3 way valve, but now I dont know what to do.
@@Kay-dx8vm same for me
@@KingdomLaz it was the 3 way valve for me. I replaced it and clear the code succesfully
IT IS THE 3 WAY VALVE. THIS VIDEO IS HOOEY. P3190 AND P0A0F ARE THE MOST COMMON CODES THAT ARE FIXED WITH A TB CLEANING.
Will I need to burp the coolant system after?
I didn't need to but if it starts overheating that's the first thing I would try. Thanks for watching!
Thanks
If I use w40 to clean the throttle and in the end I use the normal spray clean
That's fine or trouble?
Thanks
It's probably fine but I would just use carb/throttle body cleaner. Thanks for watching!
If is the pump that's a recall for toyota prius the should fix it for free
What years? :o
Does the throttle need to be reset to relearn?
Nope. It is plug and play the computer will slowly learn over time anyways. Thanks for watching!
Den här video vill starta inte.
The code has nothing to do with the throttle body. Lmao
Yes it is. www.kbb.com/obd-ii/p1121/ If the throttle body can't return to position it will throw a P1121. Lmao