I'm getting a code 41 (Throttle Position Sensor) & my engine (3vz) is idling a bit high. Thinking I may need a new Throttle Body, but wanted to see if anyone had this before & maybe it's a cheaper fix???

 

Test it to be sure.

 

How do I test it?

 

FSM or similar and a multimeter. Not that hard really.

 

The resistance should vary linearly as the throttle is opened.
FSM will tell you if the resistance is within spec or not.

 

here is the FSM procedure for testing it.

http://personal.utulsa.edu/~nathan-b...93throttle.pdf

 

you shouldn't need a new throttle body just because the sensor goes bad.
Mine went bad a couple months ago and Toyota replaced the sensor. Then all was good.

 

Do you know how much the sensor by itself was?

 

Honestly, no. It was covered under my extended warranty so I only had to pay the "diagnostic" fee.
Give your local toyota dealer a call and they should be able to tell you a price.

 

I've got two that are less than six month old if you need one. They do dead spot after awhile so you may just need a new one or it may just need adjusting. Deffintely try the adjusting first. Get a multimeter and some testing clips for the meter. It makes it easier to test.

 

Cool, thanks guys. I'll give it a test tomorrow & see what's up.

 

OK, hopefully this isn't as stupid of a question as I think it's going to be... on the page you gave me, it says to "Insert SST between the throttle stop screww & stop lever..." What the hell is an SST? (if I don't know what that is, is this something I should have the stealer do?)

 

SST == "Special Service Tool"

Sometimes an SST is a tool that is required to get a job done. More often it's a tool that makes the job easier, but you can figure out other ways to do the job using ordinary tools that you probably already have. There's a zillion SST's listed in the service manuals. You will have to be creative and figure out if this is a job you can do without it or if it's one of the rare cases when the tool is a must have.

 

quick question that probably has an obvious answer. the FSM gives directions to adjusting the TPS while it's off the motor, but it says "Apply a vacuum to the throttle opener" What's the best way to do this while it's on my bench?

 

Something like this:

 

Here is my TPS adjustment/testing page:

http://www.4crawler.com/4x4/CheapTri...#TPSAdjustment