ChinaRiders Forums - High idle

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- Zongshen RX3 (http://www.chinariders.net/forumdisplay.php?f=136)

- - High idle - TPS? (http://www.chinariders.net/showthread.php?t=29467)

Quote:

Originally Posted by ChopperCharles (Post 364812)

Bike finally threw a code. P0132. Looks like I may actually need an O2 sensor.

Not super surprising; you did cook the crap out of your catalytic converter when the clogged fuel filter leaned out the engine while you were running down the highway. That would have shortened the life of your O2 sensor greatly. Hopefully that is all that you need to get the bike running right again.

Yeah. I went ahead and ordered pretty much every sensor on the bike aftermarket. I did pay big bucks for an OEM stepper motor/IAC valve, but everything else I found very cheaply. I'm going to keep a full set of spares on hand, along with the diagnostic stuff.

Charles.

So my dongle thingy came with three different CDRs labeled Ecuflash Techstream, JLR-SPA, and JLR-PRO 138FULL. These of any use?

Charles.

Take a picture of the interface you have if taxtric here is drivers https://www.tactrix.com/index.php?op...blog&Itemid=61

Quote:

Originally Posted by ChopperCharles (Post 364891)

So my dongle thingy came with three different CDRs labeled Ecuflash Techstream, JLR-SPA, and JLR-PRO 138FULL. These of any use?

Charles.

ECUFlash is a pretty good universal ECU reading / writing application. ECUFlash even has a forum where people post up stock ROMs for their vehicle and either pay, or wait for a new tune to be available like Stage 1 or Stage 2 / O2 sensor / MAF delete, etc. Techstream is for Toyota / Lexus vehicles | JLR is for Jaguar and Land Rover vehicles.

I'm fairly confident you'll be using that HOD ECU Hacker program for most all of it. Though, you could try other applications like Torque (mobile) or Palmer Performance software (PC) - https://www.palmerperformance.com/ Even has a dyno! But, that would just be to monitor / code read and see what aspects need to be tweaked, and give you a pretty accurate HP / TQ reading (dyno).

So the CD's - probably useless for the bike. I'd hang onto them though; can scan your cars if they throw any codes. The CD's might also have the driver for your device - if you're using Windows 10, wont be necessary; Windows grabs the drivers automagically. Except Tactrix, might need to manually install the J2534 driver. I don't know if Microsoft has included that chip driver in their database - but, Lukas has you covered on the download.

Quote:

Originally Posted by Working_ZS (Post 364659)

Alright Charles, here you go:

Hardware Needed:

Tactrix Openport 2.0 Interface - either the name brand version for $169:

https://www.tactrix.com/index.php?op...ed=1&Itemid=53

or one of the Chinese knockoffs for $50:

https://www.amazon.com/Yourshops-Ope...dp/B093L6MZG6/

Additionally, you are going to need a 6 pin to 16 pin OBD cable, in order to connect the Openport 2.0 to the OBD connector on the bike. Here is one that should work:

https://www.amazon.com/OTKEFDI-Cable...dp/B07V39YPF7/

You will also need a computer running Windows 10, either a laptop or desktop, preferably a laptop, unless you have a desktop set up in your garage and a really long USB cable to connect the computer to the Openport 2.0 device.

Software Needed:

HUD ECU Hacker - which is free and available here:

https://netcult.ch/elmue/HUD%20ECU%20Hacker/

This will let you read the EFI map and download a copy from the ECU.

As far as connecting it up, you:

1.) Plug the 6 pin to 16 pin cable into the 6 pin RX3 OBD port.

2.) Plug the 16 pin connector into the Openport 2.0 device.

3.) Plug a USB cable into the Openport 2.0 device and plug the other end into one of the USB ports on your computer. It appears that the connection between the HUD ECUHacker software and Openport 2.0 device is sensitive to which USB port that you use on the computer, so you may have to try multiple ports until you find one that works.

From this point on, I'm not too clear on the further steps needed. It appears that you can read, copy, and send out the OEM EFI map to a tuner who will, for $30, adjust it per your instructions, and send you back the modified copy to be uploaded into the RX3's Delphi MT-05 ECU. But I'm not sure here, and it appears that this part has not been done successfully yet. I'll update this once we know more.

Hopefully this is enough to get you started.;)

That cable from Amazon is the wrong one for the RX3. While it's a 6-pin connector, both the internals and extyernal parts of the connector prevent it from being attached to the RX3's connector.

Charles.

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

Charles.

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.

Quote:

Originally Posted by ChopperCharles (Post 365064)

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

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.

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.

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.

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.