Hi , I am subscribed to your you-tube channel and your videos are awesome , thanks.
I have a 2009 Toyota Tacoma 4-door with the v6 and 150,000 kilometres. Almost all of those kilometres were highway miles put on in the last 3 years since I started commuting between Fort McMurray and Edmonton , here in Northern Alberta. I have had no issues with the truck until a few months ago. Sometimes when I go to pass a vehicle , or accelerate by pushing the accelerator to the floor, the truck does not respond. If I then ease up and push it to the floor again it works ok. I bought a Blue-Driver OBDII reader (based on your reviews) , connected it and ran a full diagnostic , with no codes showing up. The air filter and plugs were recently changed. I then cleaned the Mass Air Flow sensor and throttle body to see if that would make difference , no such luck. It would appear that it may be the Accelerator Position Sensor or the Throttle Position Sensor. Are my assumptions correct and how do I go about determining which one is causing the issue? Since the truck is close to 12 years old , I plan on doing as much of the mechanical replaces myself. I have had in to to my Toyota dealer for every service since I bought it and it is very well maintained , I would like to keep it for as long as it continues to run , but I don’t want to fork over a bag of money to the dealership for any repairs.
Any help or advice would be greatly appreciated.
Thank you
Cliff
You're describing the classic symptom of when the throttle position sensor is faulty.
Your problem is that they don't offer a replacement TPS for your Tacoma.
On your V6 Tacoma, they incorporate an electronic unit on your throttle body which acts as both the TPS and the idle air control valve.
So it seems when the electronics fail, you have to buy a new Throttle Body Assembly with
(what Toyota refers to as) a "Throttle Motor"
It's Toyota part number 22030-0P010
Are you sitting down?
If you want a Toyota OEM part it costs $284 bucks.
You can buy an aftermarket one for about $90 bucks.
Thanks for the info , now it all makes sense. No wonder I could not find a separate TPS for my truck. I just checked at the cost of a new Fuel Injection Throttle Body here in Alberta , and it will cost 1,000+ Canadian for a new one at NAPA. The remanufactured ones are 300+. Usually the Toyota dealers are more expensive than the parts stores , but I might as well check there also. Also , I am just curious if anyone has any thoughts on Throttle Body Spacers. I had one put on 4years ago and I was wondering if that would in any way be related to the a faulty TPS. My thoughts are that it is not related , but I was thinking about removing it when I replace the Throttle Body assembly. Thanks for your help , I really appreciate it.
i would try this...and this ia assuming the catalyctic converter maybe getting clogged up. Just remove the oxygen sensor between the cat and the engine exhaust manifold to see if the truck can accelerate better than before. If it runs the same then the cat is no restricted so you know thats not an issue. Of course a code will come up but erase it as its because the ECM sees no activity.
BUT if it runs better...you have your answer...
Nope , that did not work. Since it happens only periodically , I am going to remove the accelerator pedal and inspect it to see if there is any corrosion of any type and possibly look at buying a replacement. I am having trouble locating the replacement part for the Throttle Body Position sensor , I can’t event tell if my truck has one. The part is not listed on the official Toyota parts site .... need to do more investigation. Thanks for your suggestion though , appreciate it.
Good idea to check the pedal. In this age of drive by wire, the accelerator pedal is basically a light dimmer switch under your foot. Any water or corrosion can cause a malfunction. I never had a problem with an accelerator cable, but I guess that's just too simple and inexpensive for today's electronic everything manufacturers.
Removed the accelerator pedal and inspected it , it looks in perfect shape , the connection is also perfect. There was a firmware upgrade for my BlueDriver OBCDII reader , so I applied that and reran a complete diagnostic. No issues , everything appears normal. Inspected all my hoses to see if any where loose , none were. It would appear that my truck does not have a throttle position sensor (TPS) , or at least I cannot find one. Not sure what to do now , guess I have to connect the BlueDriver and run the software to capture live data and run it until the issue reoccurs.
I think I'll just stick with my throttle cable that actually opens and closes the butterfly, thanks.
Looks like the issue is with the TPS that is a part of the Throttle Body Assembly. Shopped around here in Alberta and looks like I will be ordering the OEM part from my Toyota dealer at $890.00. Since it has the sensor build into it , I assume it is a wise choice to pay more and go with the OEM. The impression I get from watching the videos by Scotty on purchasing parts and repairing your vehicles (Especially parts with electronic comports) it is best to go with OEM. I plan on keeping the Tacoma until it falls apart , so dishing out 900 bucks is worth it (I hope...)