Which OBD Reader?

Info on parts and accessories for the Mégane II, what to use and where to buy them.

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StubbleHound
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Which OBD Reader?

Postby StubbleHound » Tue Nov 19, 2013 10:53 pm

I am looking to get an OBD reader. Which is the best combo to go for?

I have seen bluetooth models that connect to your smartphone and also ones that connect to your laptop via USB. Which is the better option? What do people on the forum use? Is the Elm327 any good?

Thanks

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MilosB
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Re: Which OBD Reader?

Postby MilosB » Wed Nov 20, 2013 7:35 am

Renault Megane II 1.9dci sport p. 3dr. lowered on koni's,and exhausting through sebring

freelanderuk
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Re: Which OBD Reader?

Postby freelanderuk » Wed Nov 20, 2013 7:37 am

the cheapest option is the Elm327 as this can be used with smart phone and tablet , i use this and so do many others on here and find it does all i need, the software is on google play for free , Torque for android is what you want

thats cheaper than what i paid :D
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AlexB
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Re: Which OBD Reader?

Postby AlexB » Wed Nov 20, 2013 3:39 pm

This is ELM327 which I use. The version with Bluetooth can be interfaced to a mobile phone, and it is about £10.

MilosB wrote:I bought this one, but still waiting for it to arrive http://www.ebay.co.uk/itm/140920025090?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
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MilosB
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Re: Which OBD Reader?

Postby MilosB » Thu Nov 21, 2013 4:37 pm

which tool do you use, as the one I have on the cd provided, cant read most of the data (O reading, fuel trim etc)
Renault Megane II 1.9dci sport p. 3dr. lowered on koni's,and exhausting through sebring

freelanderuk
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Re: Which OBD Reader?

Postby freelanderuk » Thu Nov 21, 2013 4:56 pm

I use Torque for android on my smart phone and tablet with a Bluetooth elm 327
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MilosB
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Re: Which OBD Reader?

Postby MilosB » Thu Nov 21, 2013 6:53 pm

I'm after one that can run on PC.
8)
Renault Megane II 1.9dci sport p. 3dr. lowered on koni's,and exhausting through sebring

AlexB
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Re: Which OBD Reader?

Postby AlexB » Sun Nov 24, 2013 1:26 pm

I use torque as a toy, and scanmaster for logging the live parameters for further plotting.

MilosB wrote:which tool do you use, as the one I have on the cd provided, cant read most of the data (O reading, fuel trim etc)
AlexB
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MilosB
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Re: Which OBD Reader?

Postby MilosB » Sun Nov 24, 2013 1:59 pm

http://www.scantool.net/software/scanmaster.html
is this the one ?
i cant get it to read out the fuel trim. I have very high fuel consumption and want to see why is it like that. i have no error just 15 l/100km in city.
Renault Megane II 1.9dci sport p. 3dr. lowered on koni's,and exhausting through sebring

AlexB
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Re: Which OBD Reader?

Postby AlexB » Mon Nov 25, 2013 9:22 pm

Yes, this is the one. I am using an old development version. The problem is that it can't plot too many diagrams in the same time, so I have to save the log and plot it with Excel or GnuPlot.
AlexB
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AlexB
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Re: Which OBD Reader?

Postby AlexB » Mon Nov 25, 2013 9:32 pm

Regarding fuel consumption. You need to check it on a calm motorway journey. Mine does about 50mpg Newcastle-London and 55mpg back, driving as on cruse control (which I don't have), mostly at 70mph. In town my wife gets 35mpg in summer and 30mpg in winter. She does short journeys on a cold engine and in traffic jam. Her average speed is about 12mph.
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AlexB
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Re: Which OBD Reader?

Postby AlexB » Mon Nov 25, 2013 9:39 pm

These are the plots of live data from elm327 logged with Scanmaster and plotted with Excel.

Car BM0G F9Q-800 made in autumn 2003

K-line, ISO 14230-4 KWP fast init protocol. CAN bus also responds, but incoherently. So, I am not using it. It is only for the proprietary Clip protocol.

I do such a test run every year and compare the results.

Image
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MilosB
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Re: Which OBD Reader?

Postby MilosB » Mon Nov 25, 2013 9:50 pm

I see the numbers now :) will try them out. Thanks :cool:
Renault Megane II 1.9dci sport p. 3dr. lowered on koni's,and exhausting through sebring

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MilosB
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Re: Which OBD Reader?

Postby MilosB » Mon Nov 25, 2013 9:57 pm

MilosB wrote:in a very steep street city (on a hill most of the time) very few roads are level I get 12-15 L/100km = 24 - 18 MPG is this to high ? or i should start finding where does the fuel drip :) (i have to say the trip is 1km and the car barely gets up to temperature)
on a high way - 120km/h + some local loads at 80km/h all the way on a CC i got 6l/100km = 47MPG on a 800km trip of which 200km is a up and down a hill and AC on as it was cooold :)
is it any god ? 1.9dci at 154oookm. I suppose the city milage is very low


A qoute from consumption tread.
I'm suspecting either a egr being cloghed (but not enough to make an error, or a dpf. A high fuel trim should indicate it. Or if there is no high fuel trim than it's only my hevy fot.

Thanks for being very helpful
Renault Megane II 1.9dci sport p. 3dr. lowered on koni's,and exhausting through sebring

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MilosB
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Re: Which OBD Reader?

Postby MilosB » Tue Nov 26, 2013 7:01 am

the screen shot, still can't read the fuel trim. Image
Renault Megane II 1.9dci sport p. 3dr. lowered on koni's,and exhausting through sebring


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