TuneECU - Install/Adjust new Pri TPS

[tdragger]

Looking for a knowledgeable wrench out there to translate the following TuneBoy instructions to TuneECU equivalents.

Originally Posted by idk
1. Connect your computer to your bike and open TuneBoy (not TuneEdit)

2. Turn on the ignition - do not start the engine

3. Click on "Sensors". On the second column, 2nd from the top, you will see "TPS volts". That is the information that you will be adjusting.

4. Click ONCE on "Reset ISCV", which is on the bottom left hand side. This will cause the bike to make a little noise and the "TPS volts" will change. A scrolling text of information will appear at the bottom of the TuneBoy screen which will give you the instructions from here on. Follow them exactly.

5. To adjust the TPS you will need a torx socket wrench (I can't remember what size, but it is the 3rd smallest one in my set) and a very small (3/16, from memory) ring spanner (box wrench) to fit around the hex part of the torx socket.

6. Fit the ring spanner over the torx socket and hold the socket into the torx bolt with a finger from your right hand. Use the spanner with your left hand to turn the torx socket. (This is different from the manual. The manual suggests that you take the throttle bodies off to make this adjustment. Somebody designed the throttle bodies to be too close to the frame to allow access to the TPS bolt. If you can get the right sized Metric hex or Allen bolt to replace the torx bolt then now may be a good time to do it.

7. Loosen the torx bolt and adjust the TPS by twisting it

8. Re-tighten the torx bolt and check to see that the reading is still correct

9. If the throttle adjustment (2nd adjustment in the instructions scrolling along the bottom) needs adjusting then you will need a 7mm ring spanner to adjust it with. (You will probably find that that area has a lot of dirt and oil build-up. Spray it with WD40 to clean it. This should probably be done before you start the project.)

10. Follow the rest of the scrolling instructions. When it tells you to do nothing, do nothing. After completing everything then turn the bike off.

11. Start the bike. It will probably rev high for a few seconds then drop back to normal idle. You can do a 12 minute tune if you want, but it's not necessary.

It took longer to write this than do it.

I need to replace my primary TPS tonight and don't want to screw it up.

 

[Power-Tripp]

Open TuneECU and go to the sensors page (TESTS on top right) - find primary sensor voltage (TPS). It should be set at .600v with power on - engine not running. Turn key off.

Remove the primary TPS:
Remove the Torx screw from the TPS on the left side of the throttle body.
Pull TPS off, and disconnect plug from harness.
Connect new TPS to harness.
Use torx screw and install new TPS on throttle body. Get screw snug, but not tight.

Check sensor voltage again with TuneECU.
Use a screwdriver against the bottom or top of the TPS and lightly tap it with another screwdriver or light hammer to increase or decrease the voltage by rotating. Set it at .600v, then tighten the screw. Make sure you do not move TPS when tightening.

Ride on.

 

[tdragger]

Thanks, PT.

I'm new to fuel injection so please be patient with my dumb questions.

The R3 Service Manual talks about commands on their tool to "drive the primary throttle to the full close position" prior to taking a voltage reading. Is this necessary and does TuneECU send these commands?

Also, other Captains have posted steps to "Reset ISCV" which implies involvement of the Idle Stepper Motor. Is this also something that needs to be done prior to checking the voltage setting of the TPS? Is this the function of the "Idle Stepper" command on the Test page?

 

[Pig9r]

I can't speak for TuneEcu but Tuneboy has a test function that operates like the Triumph tool.

http://www.r3owners.net/common-issues/2142-reset-iscv-tuneboy.html

 

[Power-Tripp]

TD,
As long as the key and kill switches are on, the rest position, should be full closed.
Unless you have the throttle cables too tight, and the throttle shaft/blades are clean, the Throttles will be pulled to full closed by the throttle spring - with only a small gap on some for balance. If not, you have a problem that needs to be corrected.



Resetting the ISCV (Idle Stepper Control Valve) can be done with TuneECU on the TEST page. It will also cycle when you key the bike off and on and then fire it up. It is a good idea to reset it and let it fully cycle, but not mandatory. Resetting it allows the ECU to know where the zero is, but it will still correct idle to the idle rpm set in the ECU when running. resetting is more important on engines where the ISCV is an actual vacuum bypass valve rather than a throttle position servo like Triumph uses.

I hope this helps,
-Wayne

 

[tdragger]

TPS finally arrived and install was straightforward. Voltage is .060 right on the dot.

BBUUUTTT....

After completing the TPS install, I double-clicked the "Idle Stepper" test. I could hear the "ugnn....ugnn....ugnn....ugnn...." of the stepper motor working. I waited for it to stop. and waited. and waited.... I checked the TuneECU screen and it said the Idle Stepper test was done so why was this sound still going on?

What's going on folks?

I started the bike and it seems to run just fine. However, when I turn the key on, it completes the gauge sweep and then starts the "ugnn...ugnn...." sound again.

 

[tdragger]

OK, after much stress over "did I just screw up my bike", things have been sorted out. The TuneECU documentation is not the most clear on this subject but the software works great after you figure out what to do with it.

To change the Primary TPS, here are a few clarifications that I hope will help the next Captain.

1. Change out the Primary TPS as described above until you get to the voltage setting part.

2. Hook up your computer with TuneECU running and turn the key on. DO NOT START THE ENGINE. (You may want to prep by removing the 20 amp headlight fuse to save your battery.)

3. After TuneECU has connected to your bike, verify the connection by clicking on the Diagnostics button in the upper right corner. This will open the Diagnostics page and gather some readings from the ECU. You might want to note the value for the Throttle setting, however, DO NOT USE THIS VALUE TO ADJUST THE TPS VOLTAGE. This is where I made my mistake and the Idle Stepper Motor was out of adjustment.

4. Now click on the Tests button in the upper right corner. You will see the Tests & Adjust section on the lower left of the screen.

5. To set the Primary TPS, double-click the "Adjust ISCV" checkbox.

SIDENOTE: this is a weird software interface. A checkbox implies a single-click to "check the box", i.e. turn it on. It was a little aggrevating trying to sort out this interface.

6. The checkbox next to the "Adjust ISCV" text will turn solid and whirring sounds will start coming from your bike in the area of the throttle bodies. You will also notice that the Cyl 3 (bottom) MAP guage has changed to read the TPS Voltage.

7. At the bottom of the window some text will appear instructing you to move the TPS until the value reads .060 in the digital part of the gauge and that the arrow is centered at the top. Make adjustments as necessary.

8. Double-click the "Adjust ISCV" text again to continue with the adjustments. More whirrings will occur and some new text is displayed at the bottom of the window. This time it asks you to adjust the TPS until the value reads .072v. You should not have to move it at all but this is just a verification step apparently.

9. Now you can tighten down the torx screw CAREFULLY.

10. Double-click the "Adjust ISCV" text one more time and it will go through a Reset Adaptives process. The text at the bottom of the window will tell you to wait 15 seconds and tell you when it is complete.

11. Turn your key off and disconnect everything. Plug your headlight/starter fuse back in and start your engine.

12. Pray that you did everything right.

 

[tdragger]

It's amazing what a new, properly functioning TPS can do for the ride. 150+ miles today with no problems.

The old tps was killing my gas mileage as well. The fuel light would come on at 100 miles. Today made it to 155 before it started to glow.

 

[Tom-Hamburg]

8. Double-click the "Adjust ISCV" text again to continue with the adjustments. More whirrings will occur and some new text is displayed at the bottom of the window. This time it asks you to adjust the TPS until the value reads .072v. You should not have to move it at all but this is just a verification step apparently.

This value is for the fully open throttle position.

If this value is outside the tolerance, it must be corrected at the adjustment screw from ISCV

BR, Tom

 

[Cobba]

This value is for the fully open throttle position.

If this value is outside the tolerance, it must be corrected at the adjustment screw from ISCV

BR, Tom

Tom.
Can I ask you to clarify this a bit better for me please.

I'm gathering you mean that the throttle is manually opened fully to read the TPS?

Where abouts is the adjustment done from???

How critical is it in relation to the correct running of the engine??



I do understand the initial setting of the TPS and what I believe to be the correct means for setting the Idle Controller motor but haven't heard anything of the fully open setting till now.

I am about to fit a new TPS as soon as I think I've got all the answers. Want to balance the throttle bodies as well when I do it and get it all done right the first time.

Any advice would be much appeciated. Also links to the balancing would be good too.

Cheers.