Jump to content
SAU Community

Rb25 tps question...yes I've searched need clarity

Ed.williams5
 Share

Recommended Posts

Ed.williams5 Enthusiast

Ed.williams5

Posted
Posted
Rb25 tps question...yes I've searched need clarity

Hi guys I've been searching on the forum and I am getting mixed info on what the tps for an rp25 should be set at for WOT.

 

I adjusted throttle plate closed to 0.50v and when I check WOT I'm reading like 4.1-4.2v

I searched and found a thread saying this was correct however another person said that's incorrect and it should be same as rb20.. 0.50 closed and 4.5 wide open.  Can one of the guru set me straight on this please? 

Ed.williams5 Enthusiast

Ed.williams5

Posted
  • Author
Posted (edited)

So now went through with my haltech to read voltages at idle and wot and I'm getting 0.00v...Looking like I need a new TPS need to ohm it out to be sure though

Edited by Ed.williams5
Ed.williams5 Enthusiast

Ed.williams5

Posted
  • Author
Posted

Update: 

Pulled connector apart and verified that terminals have good connection.  back probed with meter and with throttle plate closed got .49v however occasionally it will drop and read no voltage until I slowly move the plate open.  When throttle plate is opened WOT I had a max reading of 5.02v.  

Thinking the TPS must be bad since voltage is high and there is an occasional dead spot on the potentiometer when at idle position.

Ed.williams5 Enthusiast

Ed.williams5

Posted
  • Author
Posted

Yes I have kiwi I ohmed it out according to that it's good the part the I don't understand is where it says with plate closed it should read 4.2 to 5.2v closed.

It then says keeps measuring as you open and should increase smoothly to 4.1-4.6v. 

So obviously the closed voltage is a typo. I do have more then the specified voltage with the throttle plate open which is why I'm leaning towards the tps being bad.

 

Seems like I always get you to respond hah. Thanks for the help is much appreciated ^^

89CAL Grand Master

89CAL

Posted
Posted

Two wired will read a high voltage and two will read a low voltage on a 3 pin potentiometer. Vice versa when you move the throttle all the way to the other pos

It is probably referring to the output voltage getting to the TPS with throttle closed needing to be around 5v

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • PranK
      Chris' Toyota Mark ii JZX110

      By PranK · Posted

      This looks great! Awesome to have the 5 speed with an LSD in this. The Recaro's look like SR2's or SR3's. It's a shame they've been retrimmed as they would have looked sweet in their original colours. I think I'd want my agent to be a little more up front and informative too. I've never imported but I reckon it would make me a little nervous, so the more info the better.
    • soviet_merlin
      Duncan's V37.......race car?

      By soviet_merlin · Posted

      Thanks for doing that Duncan! Makes you a good person in my books. We don't get kangaroos or wombats here. But we have bats and it's similar. AFAIK it's often the mums with a baby attached that get hit because they drop lower when starting from a tree. If you hit an animal, check on it. https://www.ifaw.org/au/resources/wildlife-rescue-app An app to get the closest wildlife rescue contact.
    • Murray_Calavera
      Jacks that fit under GTR lips that can reach the subframe?

      By Murray_Calavera · Posted

      My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Duncan
      Chris' Toyota Mark ii JZX110

      By Duncan · Posted

      Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
×
×
  • Create New...