OBD monitors

[SkiFreak]

I am currently trying to find out exactly what "reprogramming" is actually possible with these units, but as yet I have not had any technical responses.
When I spoke with the head mechanic at my local Fuso service centre he told me that even with the genuine MUT-III reader the things that can be changed are very limited. He is always a little guarded when I talk about scan tools, so I am not sure if he is telling the whole story or not.
Naturally, if I do find out any information about these Chinese clone MUT-III readers, I will post it here.

 

[pugslyyy]

The ability to 'reprogram' ECUs would be outstanding. I could see a knowledgeable person (Pugslyyy in the US ?) being able to offset the cost of one of these units by offering custom Fuso ECU programing for a fee. I'd sign-up.

I'm not sure the extent of custom programming that is possible - but would be interested in learning. It may take a special piece of equipment to load a custom map, but of course generating that performance map could be another skill set entirely.

 

[SkiFreak]

I have just bought another, relatively cheap, scan tool from China in the hope that it might read the data that comes out of my FG84.
Should be here next week, at which time I will give it a try and see if any sensible data is displayed.

Good or bad, I will give an update here. Stay tuned...

 

[cnick]

I've had good luck with this scan tool and their android software on my US 2015 FG4x4:

[ScanTool 427201 OBDLink LX Bluetooth](http://www.amazon.com/ScanTool-4272...444341856&sr=8-1-fkmr0&keywords=odblink+odbII) - Bluetooth OBD Reader. Seems to be better quality that the $10 knock off brands.

[OBDLink Android Software](https://play.google.com/store/apps/details?id=OCTech.Mobile.Applications.OBDLink&hl=en) - Free Android software that supports the ODBLink reader.

I've paired this with a cheap android tablet for the display in the truck:
[Dragon Touch M7](http://www.amazon.com/gp/product/B00WE38TS6?psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00) - Android Tablet. Has GPS, the touch screen is not that great, but it was cheap and serves the single purpose reasonably well.

I have been unable to get TorquePro to work with the Fuso, it seems to be a bug in how TorquePro is handling the protocol (ISO 15765-4 CAN (29 bit ID, 500 Kbaud)), but I don't have and hard evidence of that. I do know other software tools are able to read data from the OBDLink XL and the Fuso.

This is what the dashboard looks like in the truck at the present time:



I'm displaying:

• Post Turbo Temp (EGT11)
• Computed Turbo Boost
• Engine Temp
• DEF Level
• Final Exhaust Temp (EGT14)
• Bus Voltage
• Engine RPM
• Current MPG
• Fuel Rate / Hour
• External Temp

These are all basic OBD II PIDs. I'm really interested in transmission temp and a few other things that are certainly buried in a custom PID someplace. That will take some effort to find though.

On the Post Turbo EGT, I have the blue / cool line set at 401F / 205C and have been using that as an indication that it's cool enough to turn the truck off. I've compared the before and after temps with the suggested 3 min cooldown and this seems to be more conservative overall, but I'm actually idling the engine less with this method. Does this seem like a reasonable post turbo shut-down temp?

Anyone have anything to add or questions I can try and answer?

-Chris

 

[pugslyyy]

I've had good luck with this scan tool and their android software on my US 2015 FG4x4:

I have been unable to get TorquePro to work with the Fuso, it seems to be a bug in how TorquePro is handling the protocol (ISO 15765-4 CAN (29 bit ID, 500 Kbaud)), but I don't have and hard evidence of that. I do know other software tools are able to read data from the OBDLink XL and the Fuso.

Hmm, I'll give that a try. I have been able to use Torque to read the trouble codes, but nothing else. 2007 so different beast, but if that app works with yours it is worth a try on mine. thanks!

 

[gait]

not much use to anyone really, my efforts with OBD and Aus FG649 have failed.

Its basically "k-line" out of the ECU. My next step is to see if I can read the output at its most basic level.

Here's an ECU simulator which I've yet to order.
http://www.ebay.com.au/itm/ET7190-K...U-simulator-/321810124785?hash=item4aed60cff1

There are more complex / flexible / expensive available.

May also be useful for experimenting with cruise control before smoke testing with a real ECU.

 

[SkiFreak]

I've had good luck with this scan tool and their android software on my US 2015 FG4x4:

Could be that the 2015 model is more OBD-II compliant than previous models, which don't really seem to be compliant at all.

 

[pugslyyy]

not much use to anyone really, my efforts with OBD and Aus FG649 have failed.

Its basically "k-line" out of the ECU. My next step is to see if I can read the output at its most basic level.

Here's an ECU simulator which I've yet to order.
http://www.ebay.com.au/itm/ET7190-K...U-simulator-/321810124785?hash=item4aed60cff1

There are more complex / flexible / expensive available.

May also be useful for experimenting with cruise control before smoke testing with a real ECU.

I'm not planning on going anywhere near OBD / PID / Can-bus for my project, just directly manipulating the ECU inputs.

 

[gait]

I'm not planning on going anywhere near OBD / PID / Can-bus for my project, just directly manipulating the ECU inputs.

Did I suggest you were using OBDII? "May be" is just "may be". Up to you. An ECU simulator "could" be used to, in your case, manipulate the ECU inputs and read the effect. Nothing much active happening inside the simulator but that can be an advantage. "May" be useful to observe transitions / switchover (when input maybe drops to zero between normal/cruise, there may be internal smoothing) etc. The particular simulator I linked to has limited inputs, as mentioned there are others available with more flexibility.

 

[pugslyyy]

Did I suggest you were using OBDII? "May be" is just "may be". Up to you. An ECU simulator "could" be used to, in your case, manipulate the ECU inputs and read the effect. Nothing much active happening inside the simulator but that can be an advantage. "May" be useful to observe transitions / switchover (when input maybe drops to zero between normal/cruise, there may be internal smoothing) etc. The particular simulator I linked to has limited inputs, as mentioned there are others available with more flexibility.

What is bus driven on your Fuso? On mine it is only the throttle electronics and the EGR. Everything else plugs in directly to the ECU.

 

[gait]

What is bus driven on your Fuso? On mine it is only the throttle electronics and the EGR. Everything else plugs in directly to the ECU.

Back up a bit. It was just a suggestion that a simulator (or a scrapyard ECU) may be useful before smoke testing the real thing.

 

[pugslyyy]

Back up a bit. It was just a suggestion that a simulator (or a scrapyard ECU) may be useful before smoke testing the real thing.

Oh okay, I misunderstood your general comment for a specific recommendation - I thought you meant the one you linked to and was struggling with what use it could be.

 

[objet]

I have used my ScanGaugeII to get the work NPS out of limp mode.

I'm not sure if it is entirely happy being fed 24v though, it seems to get warmer than when plugged into the HiLux I originally bought it for.

Sent from my Nexus 6 using Tapatalk

 

[Czechsix]

Could be that the 2015 model is more OBD-II compliant than previous models, which don't really seem to be compliant at all.

Nope, 2010 (2011?) + has not much to do with OBD...MUTSIII is pretty proprietary. I'll be buying the mitsu MUTSIII and carrying the unit along for the far North trips we have planned. Hopefully we'll be able to get some folks to try out the earlier MUTSIII unit and software I bought a while ago on Ebay, see if that works for certain years.

 

[dlh62c]

I have used my ScanGaugeII to get the work NPS out of limp mode.

Thats fantastic, does it tell you what anomaly placed it into limp mode?