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Technical Anyone had any success with an ELM323/327 interface

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Technical Anyone had any success with an ELM323/327 interface

Argonought said:
Thar's odd :confused:

I'm sure Stilosporting drives an '05 :bang:
Click to expand...

he does.

i'm using an elm 327 pc interface on USB with gendan software.
it connects to mine fine and reads the info perfectly. (as do at least 2 other pieces of software I have).

but plug it into frank's car and it reports gibberish...
 
stilosporting said:
so does anyone know why these types of interfaces dont like the jtd?

or does anyone know what WILL work with the jtd? i really want to get one but at the moment there is no hope
Click to expand...


I haven't read the whole thread or know anyone else's state of tune but could it be that it's because you've had yours remapped?
 
Just a thought really. I had problems with my Leon connecting to my laptop after the remap, alot of cars do. In fact, the tuner had to remove the ecu from my car to remap it as he couldn't do it through the OBD port.
 
stilosporting said:
no because argo hasnt had his remapped as far as im aware? Argo?
Click to expand...
No; mine's not remapped (yet) and I can't believe a remap could affect the output from the ECU anyway.

I'm as puzzled by this as everyone :chin:

Has anyone else tried talking to the ECU manually (post #17)

I've tried "ATZ" then "ATFI" but get an error. I've a feeling if I hadn't got that error then it might have worked (tried it many times now :()

Give it a go (y)
 
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Argonought said:
No; mine's not remapped (yet) and I can't believe a remap could affect the output from the ECU anyway.

I'm as puzzled by this as everyone :chin:

Has anyone else tried talking to the ECU manually (post #17)

I've tried "ATZ" then "ATFI" but get an error. I've a feeling if I hadn't got that error then it might have worked (tried it many times now :()

Give it a go (y)
Click to expand...


could you explain that in a bit more detail? and what software are you using?
 
You need to get a more expensive, faster USB2 or PCMCIA serial port adapter. If you have an old USB 1 cheap adapter, they often do not support the requred baud rate and cause garbage, things to not work etc.

Get a [FONT=Arial, Helvetica, sans-serif]FTDI Chipset based one. They should work.
[/FONT]
 
john55 said:
You need to get a more expensive, faster USB2 or PCMCIA serial port adapter. If you have an old USB 1 cheap adapter, they often do not support the requred baud rate and cause garbage, things to not work etc.
Click to expand...
It's only 9600 baud :confused:

In any case it's exactly the same with a standard RS232 9 pin Com port.
 
OK, then it is probably not your problem, but this caused me problems on other cars. It is not so much the baud rate, but timing between characters which is dependant on the inteface, driver and even how many tasks are running on the PC.
 
john55 said:
You need to get a more expensive, faster USB2 or PCMCIA serial port adapter. If you have an old USB 1 cheap adapter, they often do not support the requred baud rate and cause garbage, things to not work etc.

Get a [FONT=Arial, Helvetica, sans-serif]FTDI Chipset based one. They should work.
[/FONT]
Click to expand...

what exactly are you saying is tooo slow? the 327 interface or the pc/laptop that is being used?
 
the interface we were trying to use worked fine with a 2004 1.6 stilo but wont work with mine. would the converter cause issues with both engines if it were at fault?


Argo, doe the orange ring around your cig lighter light up? mine doesnt so i think that might have been causing issues if there is a blown fuse?
 
there's no serial to usb converter.
it's a USB interface to the serial connection,
USB is faster transfer capacity than serial anyway.
 
Seraph said:
there's no serial to usb converter.
it's a USB interface to the serial connection,
USB is faster transfer capacity than serial anyway.
Click to expand...

the USB elm interfaces do have a built in converter. if you look on the datasheet for the interface, the chip only accepts the RS232 protocol, so a converter must be used to translate to that protocol. the fastest the ELM327 interface can run at is 33600baud, so USB would be of no advantage anyway. when you install a USB ELM driver, all your actually installing is a bridge. Infact given the choice, i'd take the serial version as you have no need to install drivers (and hence less to go wrong) and your communicating directly with the ELM chip.
What your effectively doing with the USB version is RS232 (from the software) > USB (bridge) > RS232 (hardware converter) > OBDII (Elm chip)
Whereas with the serial version... RS232 (from the software) > OBDII (Elm chip)
That has got to increase speed and throughput IMO.
 
except that even the serial versions come with a converter on them.

the interface itself has a converter in it surely. Like I've never tried it, bt I'm pretty sure if I was to connect my laptop directly to an EPROM and just tap away it wouldn't communicate properly.

either way, it works perfectly on my car, and a handful of others...but not on Frank's and that strikes me as unusual.
 
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