Throttle Pos sensor

stinky · Post by **stinky** » Thu Mar 01, 2007 7:09 pm

I noticed the other day my wolf3d is showing the TPOS at 106 regardless of the actual position of my accelerator. Anyone know if the TPOS sensor is an easily replacable item on an ea81t ?

Gannon · Post by **Gannon** » Thu Mar 01, 2007 8:27 pm

The ea81t uses the same efi system as the 85-86 ea82t motors (3plug ecu).
So a throttle position sensor off any 3plug ea82t should do the trick.

MY_STI · Post by **MY_STI** » Fri Mar 02, 2007 7:03 am

pretty sure the standard TPS is a switch for idle and Wide Open Throttle, not a variable sensor.

Yours may have been changed if your runnning an aftermarket ecu. I turned mine into a varible sensor for the Injec ems

Check the wiring as well.

fredsub · Post by **fredsub** » Fri Mar 02, 2007 8:15 am

for ea82t, TPS off many other vehicles in the junkyard will fit, I used a mitsubushi one i think.
I expect ea81t would fit up similarly....and maybe need to adjust the wiring and rewire the connector.

Gannon · Post by **Gannon** » Fri Mar 02, 2007 5:29 pm

There are 2 sensors on the throttlebody

One is a throttle position sensor ( a variable resistor)
The other is a throttle switch (a 2 position switch, has contacts for idle and WOT)

MY_STI · Post by **MY_STI** » Sun Mar 04, 2007 11:09 am

Found the original tps I removed from my ea81t, only has idle and WOT switch, part no. A22-610-970. If this is what you need you can have it for whatever postage costs.

Have an s2 ea82t in the shed that is as you descibed suparoo.

Oversteer · Post by **Oversteer** » Sun Mar 04, 2007 11:38 am

Is your wolf set-up to use TPS as transient enrichment and load by MAP ? look at you settings before you go correcting the idle switch...it may not even use it !

I`ve seen many quick and dirty Wolf installs where they just use internal map for transient and load(even seen no water temp connected ahahaha). So so ugly !

What version wolf is it ?

OS

stinky · Post by **stinky** » Sun Mar 04, 2007 5:04 pm

it's a wolf-3d.. no idea if it's set up to use it or not, but I know it reports the result to the LCD screen!

might be worth just taking it to somebody who knows the things and get them to take care of it too me.

Oversteer · Post by **Oversteer** » Sun Mar 04, 2007 6:08 pm

Is it V3 or V4 ?

You can inspect the set-up thru the hand controller.....V3 you might need to inspect the dip switches in the box, V4 use a laptop.

Best advice I ever got regarding my V3.1 Wolf3d was "throw that pos in the bin !" I very much apreciated the honesty from the dealer !...Steve said the same thing more or less when I spoke to him too lol !

You can upgrade from V3 - V4 for ~$600.....ask wolf direct if you just get funny looks from local dealer

Its worth the money to upgrade for the greater functionality and quality of the later unit.....harness only needs to be re-pinned a little, plugs are the same.

Controller will display it if used or not....its smart like that

It really is imperitive that you have transient load sensed by TPS.....load can be by Speed density(MAP) or MAF......but if it can`t tell transient acurately&quickly it will be dull and pigish !

OS

PS: do you have the config on laptop/computer...... send it to me and I should be able to tell whats what

stinky · Post by **stinky** » Sun Mar 04, 2007 8:15 pm

Hmm no I don't, but I think it came with a little unit that can be plugged into a parallel port of a PC to read. Will check it out.

Also will take a serial cable for a laptop, but appears to be a custom pinout and nobody seems interested in selling one.

stinky · Post by **stinky** » Mon Mar 05, 2007 7:28 pm

It's a 3.21 checked it on startup earlier. Will try and go through the settings and see what I can find.

Oversteer · Post by **Oversteer** » Tue Mar 06, 2007 8:23 pm

OK on that model wolf3d the load sensing settings are set with the DIP switches inside the case, switch 5 and 6, .....for MAP load and TPS enrichment 5 should be off 6 should be on.

There are various combinations.... can you remove the cover and tell me what all the switches are set to ?

OS

SCOOBIDOO · Post by **SCOOBIDOO** » Wed Mar 07, 2007 8:31 pm

stinky wrote:Hmm no I don't, but I think it came with a little unit that can be plugged into a parallel port of a PC to read. Will check it out.

Also will take a serial cable for a laptop, but appears to be a custom pinout and nobody seems interested in selling one.

I have a diagram of the pinouts and plugs required to make this cable..i made one for my self due to the same ..not able to get one... and it works fine..
and your 106 throttle is correct in what it is telling you..that is max open.and the wolf will think you have your foot to the floor at all times until you fit a potenziometer type tps...

stinky · Post by **stinky** » Thu Mar 08, 2007 8:13 am

SCOOBIDOO wrote:I have a diagram of the pinouts and plugs required to make this cable..i made one for my self due to the same ..not able to get one... and it works fine..
and your 106 throttle is correct in what it is telling you..that is max open.and the wolf will think you have your foot to the floor at all times until you fit a potenziometer type tps...

ooooh pls send to me! I'd kill for that!!

I'm 99.99% sure it used to show a graduating TPOS, so I think the sensor is stuffed.

SCOOBIDOO · Post by **SCOOBIDOO** » Thu Mar 08, 2007 11:16 am

Got an email address then? or can i post a picture file here?

stinky · Post by **stinky** » Sat Mar 10, 2007 10:34 am

check your PM

SCOOBIDOO · Post by **SCOOBIDOO** » Mon Mar 12, 2007 9:37 am

You have a diagram

stinky · Post by **stinky** » Mon Mar 12, 2007 10:26 am

brilliant! so I need a 9pin serial for the PC end, and a 15pin for the Wolf3d end ?

Oversteer · Post by **Oversteer** » Mon Mar 12, 2007 1:31 pm

Good luck with that... What software you going to use ?

AFAIK the cable for the V3 wolf your attempting to build is for reading the mem cart via a paralell port.....I don`t think wolf made pc-wolf sw for V3. You dump the map to cart and them read/write cart via 25 pin paralel

I have said cable(came with my V3) and a mem cart I don`t see a need for....make me an offer if your interested.

OS

stinky · Post by **stinky** » Mon Mar 12, 2007 4:23 pm

You know what, I think I got the version # wrong. I think it must be in the 4's somewhere, I was looking over the manual yesterday and the mapping was all done via the handset, and is set to TPS btw.

The AUSubaru.com.au Forums

Throttle Pos sensor

Throttle Pos sensor

wolf interface cable

wolf interface cable