I drive a 2009 Chevy Silverado with a 6.6 l diesel engine. My MPG on Torque is reported as 5.2 mpg (average on the way to work today) but I am getting upwards of 16 mpg. Is there a way to get the correct MPG reading with a diesel PU?

Also noticed the coolant temp was reading 102 degrees this morning when I had just started the truck. I highly doubt it got that hot within seconds of starting the vehicle. The gauge measuresments do not match the numeric output on that display either. I think the needle was pointing at 123 degrees when the numeric value was reading 180 degrees (ferinheit).

Catalyst test never completed and heat catalyst reported as not observed.

0-60 test and Torque reading look pretty accurate today. Did that get updated in the latest update? Cuz it never worked for me before.

I’ll provide more feedback as I play with this thing. But it looks like right now diesel pu does not play nice with Torque.

Nate

The temp display is a dial gauge. In the middle of the gague it has numeric reading that is accurate. But the scale of the gauge is not. The needle points at say 90 degrees while the numeric value displayed in the middle of that same dial gauge is 180 degrees. Are you saying that the ECU is sending two values? That doesn’t make any sense.

Weird thing is I got another update of Torque this morning. I ran the update. I plugged Torque in and the reading on the dial was correct. I then noticed a message saying the update of Torque did not install. I redownloaded and it installed this time. I re-ran Torque and the problem was back. So…this seems to be an intermittent problem. But more times than not it is wrong. I will send you a comm debug report when I leave work today. Should be somewhere around 1 pm PST. I have to pick up a heavy trailer and try out the Torgue measure too so it should be fun. I’ll send a log before the trailer and then again after picking up the trailer…just for S&Gs.

Thanks for quick responses and all your work on this. It makes it fun when you get to work with the developer.

Nate

Ian,

Did you receive the comm debug I sent? I wonder if I sent it correctly.

Nate

Hi, how many cylinders and what fuel type is your vehicle? and have you entered your engine size in the settings?

Ian

Ah, that’ll be why your figures are out – diesel at the moment isn’t supported by the MPG calculation – mainly due to the differences between the way the engines work.

Diesel MPG will be supported – I have promised this to others but been a bit lax about adding support (not having access to a diesel doesn’t really help), so I should get moving on this again soon.

You probably won’t see it this side of the year, probably early’ish next year as I need to have a bit of R&R instead of coding apps each night since May

Yep the extended codes are very hard to come by, it’s a shame.

MPG is worked out from several sensors on the ECU (for petrol it’s MAP/MAF, a couple of static fields RPM and something else whcih escapes me right now), I can’t cheat a little and use stoichiometric air/fuel ratios for diesel I have to come up with a different way to calculate the MPG used

It may take a couple of attempts before I get the MPG 100% for diesel when I get around to doing it – feedback will be welcomed

I also have a duramax diesel, and the turbo boost gauge seems off. At 60mph cruising speed it shows less than 1psi when the real mechanical gauge is showing 4.6psi.

Hi, I share the same thoughts as “mikewr007”. I recently purchased torque and the MPG readings (litres per kilometre in my case)are significantly out. I own a 3.0l diesel powered Toyota Landcruiser Prado.

At the moment, i’m looking to get a refund, as for my situation, the software doesn’t do what i need it to.

Admittedly I did not think to check if the application has issues with calculating diesel fuel results because other gauges that I have come across don’t have issue with this ie scanguage2 works fine with diesel engines and in my case for a Toyota Landcruiser Prado.

Is this issue likely to be rectified soon?

Thanks,
Pete

Quote from JohnAC on January 8, 2014
Is diesel now supported? I have a 2011 Toyota Landcruiser 200 series 4.5 liter V8 diesel Sahara. I have tried numerous different settings but cannot get liters per hundred Km anywhere near accurate. If diesel is now supported, can you give me some tips on what I could be doing wrong. I have input the curb weight plus additional weight, fuel type diesel, engine size 4.461, but have left volumetric efficiency at 85 because I am unable to find the correct number for this for my vehicle. I am using an OBDlink MX Scantool.
I would be grateful for any assistance.

Did you ever get this sorted out? I have an LC200TD and have never managed to get the fuel calibrated.

Quote from tld on September 6, 2016
I’m also wondering what the status is for reading diesel MPG (instant)? I just purchased Torque Pro thinking it support diesel trucks (mine is a Ford F250 6.7L), but I can only get some basic displays to work. Can you give status and update on diesel engine support please?

Give this a try, I don’t think I would expect a 5 dollar App to have all the PIDs for every vehicle.

PID: “leave blank”
Long Name: MPG (Instant) 6.7L
Short Name: MPG
Min: 0
Max 100
Scale factor: x1
Unit Type:
Equation: (([0d]*0.621371)/([5e]*0.264172))
Header: