Quote:
Originally Posted by seifrob
As for that I cannot be sure, i am just a BFU concerning cars. K9K almost sure, but furher specification I wiil have to look for (hopefully it is written somwhere under the hood?).
About OBD2 readers I believe its cars ECU that determines what can OBD2 scanner read or access, as it sends data out. I have tried one OBD2 adaptor and hanfdul of different software apps with same results - my ECU reports speed, RPM, coolant temp, fuel rail pressure, turbo boost, engine load and thats all (i think - I am sitting home). there is a widget that shows all available sensors to you in Torque pro). I believe that Scangauge will report exactly the same data, as it is all my ECU sends out. But perhaps some more fortunate user will confirm this (I believe Piwoslaw has both??)
-- the instant MPG readout and average MPG is way off in my Torque pro app too, but it is useful to get instant feedback. If it shows 5,3 l/100 km instaed of 7,2 l/100 km, I know I am driving more efficient even if the figures are way off. So I didnīt even bother to calibrate it ;-)
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You should be able to work out what engine you have based on the power output and age.
Yeah I know the ECU puts out what it puts out, and the app uses that data, however the MPG that torque shows is a calculation based off of its interpretation of the data (AFAIK).
I decided to try the fuel economy torque plugin today, (
https://play.google.com/store/apps/d...lEconomy&hl=en ) - but it still didnt work, here is its interpretation of a journey that was mostly 56mph sitting behind a fast lorry (with slow town driving at the start and finish):
Now, the presentation from the app is lovely, I really liked it - but its figures are still wrong - I estimate that along that journey I was actually achieving something in the 70's or 80's (imperial/UK MPG).
Torques standard read out was closer at 60 UK MPG - but still quite a way off!
If I turn on Torques 'enhanced' calculation, I would expect it to show something like 40 UK MPG (I haven't used the enhanced calculation much since I first tried it for a couple of miles as it was even worse, hence the estimate here).
I am not confident that any of these read outs are giving me an accurate picture... I know you say that I can still use the readings to know when I am doing better - but I think (in my case) that won't always be right... because the figures seem to be much closer to the real picture in stop start town driving - which casts doubt over the whole calculations in my mind...
I have used Torque successfully in the past on a petrol car (of a similar age) where it was consistently 10% out.
Perhaps my car isn't pushing out enough data to calculate properly?