High idle - TPS? - Page 3

Lukas · 08-20-2021, 09:31 PM

Working_ZS · 08-21-2021, 12:43 AM

Quote:

Originally Posted by ChopperCharles

Can I cut it apart or is there circuitry in the cable?

Charles.

Sure, there isn't any circuitry inside. Just double check your pinouts in regards to the RX3's DLC and the Tactrix. Use the RX3 Wiring diagram here for the DLC pinout:

http://www.rx3adventure.com/images/r..._schematic.jpg

Lukas · 08-20-2021, 09:36 PM

amazon https://www.amazon.com/Diagnostics-D...89GZ5NV6&psc=1

ChopperCharles · 08-20-2021, 09:50 PM

I did order the aliexpress one, but then didn't want to wait a month and a half for it to arrive, so I got the amazon one listed well above.

Lukas, I see the new one you've listed and I ordered it, but it's also a week out. Oh well. At least I have a Benelli and an Italjet to ride in the interim.

Charles.

ChopperCharles · 08-23-2021, 10:26 PM

Okay, I was able to get everything working and I recorded a few minutes of it running. Here is the logfile:

https://drive.google.com/file/d/1szR...ew?usp=sharing

What I'm noticing is that the TPS is fluctuating between 0.5% and 1.4%. Later in the file I try opening the throttle (up to 5.5%) just to see if the tps will snap back to under 1%, but it doesn't.

My working theory is a bad TPS. TPS reads high, causes ECU to supply fuel even though throttle body is closed. O2 sensor goes super rich because of all this fuel.

But that's a guess. Can you guys tell anything different from the data log I shared above? Thanks!

Charles.

ChopperCharles · 08-23-2021, 10:57 PM

Here's a graph.

https://drive.google.com/file/d/1yHz...ew?usp=sharing

I blipped the throttle once at the 4 minute mark. Otherwise I didn't touch the grip. Plenty of cable slack FWIW.

Charles.

Lukas · 08-29-2021, 07:26 PM

I was busy changing the muffler on the rx3 today I couldn't download the file you should get an email asking you to share the file.

ChopperCharles · 08-29-2021, 09:57 PM

I just got home, saw your message, and replied to your email. I thought I had it set to be shared with everyone, I'll doublecheck.

Charles.

Lukas · 08-29-2021, 10:13 PM

It is 4 am, so I have no way to check when I will probably get up at noon, I will record a diary on my motorcycle and compare them.

Lukas · 08-29-2021, 10:26 PM

On a quick comparison with the log file available in the ben elli TRK 251 program you can see the strange behavior here.

Lukas · 08-29-2021, 10:36 PM

It's 4am and I can't think too much anymore, but it looks like a crazy TPS sensor, but tomorrow er actually today I'll still compare it to my rx3.If the map sensor or tps is defective after some time from the bad mixture it will give a lambda error like the one you got.

Lukas · 08-30-2021, 05:28 PM

I made a log of my bike and compared you can see the problem with the throttle position you can clean it and check the plug contacts you can also replace the TPS I assume it is the problem you can look for such a TPS if the original one is expensive.

https://mega.nz/file/rMlnWaxL#ACQk_N...Hv4dhfG2crCcaU

Working_ZS · 08-31-2021, 09:23 PM

Yeah, comparing those two data logs, I'm going to say there is something up with your TPS. Clean it if you can, replace it if you can't.

ChopperCharles · 09-01-2021, 12:55 AM

I replaced the TPS, and it seemed to get better. I was riding the bike conservatively and the ECU corrected for the new TPS. Idle was rock solid stable, no codes, and the bike no longer hesitated or stuttered.

so then I took it on the highway and let it get good and hot, and the problem came right back.

I replaced the MAP sensor, because it was easy to get to. No effect. So that leaves the IAC valve. That's the last thing I haven't replaced.

Of course, now I'm feeling highly frustrated and severely pessimistic, and I'm doubting that the IAC valve will fix the problem. Which means ordering a new throttle body assembly and throwing even more money down the tubes.

I'm not pleased at all.

It's extra frustrating because I keep missing going on trips on the RX3. I *LOVE* riding the RX3. I love the size and the off-road capability and the light weight. But this will be the THIRD trip this year that I've missed due to the bike breaking right before the planned trip. This will be the third time I ride my absolutely trouble-free Benelli Leoncino instead.

Charles.

Lukas · 09-01-2021, 10:16 AM

Very strange things, I wonder how the temperature sensor works in this motorcycle, I used to have this in my car and the problem was the temp sensor but in the program you can see that the temp is ok and other things raise questions, interesting that for some time it was ok I assume until it warmed up well

08-20-2021, 09:36 PM	#3
Lukas Join Date: Jan 2021 Location: A small Polish empire Posts: 244	amazon https://www.amazon.com/Diagnostics-D...89GZ5NV6&psc=1
	0

08-20-2021, 09:50 PM	#4
ChopperCharles Join Date: Feb 2018 Location: RDU, NC Posts: 677	I did order the aliexpress one, but then didn't want to wait a month and a half for it to arrive, so I got the amazon one listed well above. Lukas, I see the new one you've listed and I ordered it, but it's also a week out. Oh well. At least I have a Benelli and an Italjet to ride in the interim. Charles.
	0

08-23-2021, 10:26 PM	#5
ChopperCharles Join Date: Feb 2018 Location: RDU, NC Posts: 677	Okay, I was able to get everything working and I recorded a few minutes of it running. Here is the logfile: https://drive.google.com/file/d/1szR...ew?usp=sharing What I'm noticing is that the TPS is fluctuating between 0.5% and 1.4%. Later in the file I try opening the throttle (up to 5.5%) just to see if the tps will snap back to under 1%, but it doesn't. My working theory is a bad TPS. TPS reads high, causes ECU to supply fuel even though throttle body is closed. O2 sensor goes super rich because of all this fuel. But that's a guess. Can you guys tell anything different from the data log I shared above? Thanks! Charles.
	0

08-23-2021, 10:57 PM	#6
ChopperCharles Join Date: Feb 2018 Location: RDU, NC Posts: 677	Here's a graph. https://drive.google.com/file/d/1yHz...ew?usp=sharing I blipped the throttle once at the 4 minute mark. Otherwise I didn't touch the grip. Plenty of cable slack FWIW. Charles.
	0

08-29-2021, 07:26 PM	#7
Lukas Join Date: Jan 2021 Location: A small Polish empire Posts: 244	I was busy changing the muffler on the rx3 today I couldn't download the file you should get an email asking you to share the file.
	0

08-29-2021, 09:57 PM	#8
ChopperCharles Join Date: Feb 2018 Location: RDU, NC Posts: 677	I just got home, saw your message, and replied to your email. I thought I had it set to be shared with everyone, I'll doublecheck. Charles.
	0

08-29-2021, 10:13 PM	#9
Lukas Join Date: Jan 2021 Location: A small Polish empire Posts: 244	It is 4 am, so I have no way to check when I will probably get up at noon, I will record a diary on my motorcycle and compare them.
	0

08-29-2021, 10:36 PM	#11
Lukas Join Date: Jan 2021 Location: A small Polish empire Posts: 244	It's 4am and I can't think too much anymore, but it looks like a crazy TPS sensor, but tomorrow er actually today I'll still compare it to my rx3.If the map sensor or tps is defective after some time from the bad mixture it will give a lambda error like the one you got.
	0

08-31-2021, 09:23 PM	#13
Working_ZS Join Date: Aug 2016 Posts: 365	Yeah, comparing those two data logs, I'm going to say there is something up with your TPS. Clean it if you can, replace it if you can't.
	0

09-01-2021, 12:55 AM	#14
ChopperCharles Join Date: Feb 2018 Location: RDU, NC Posts: 677	I replaced the TPS, and it seemed to get better. I was riding the bike conservatively and the ECU corrected for the new TPS. Idle was rock solid stable, no codes, and the bike no longer hesitated or stuttered. so then I took it on the highway and let it get good and hot, and the problem came right back. I replaced the MAP sensor, because it was easy to get to. No effect. So that leaves the IAC valve. That's the last thing I haven't replaced. Of course, now I'm feeling highly frustrated and severely pessimistic, and I'm doubting that the IAC valve will fix the problem. Which means ordering a new throttle body assembly and throwing even more money down the tubes. I'm not pleased at all. It's extra frustrating because I keep missing going on trips on the RX3. I LOVE riding the RX3. I love the size and the off-road capability and the light weight. But this will be the THIRD trip this year that I've missed due to the bike breaking right before the planned trip. This will be the third time I ride my absolutely trouble-free Benelli Leoncino instead. Charles.
	0