Which obd2 reader?

Which obd2 reader?

Author
Discussion

pidsy

Original Poster:

8,200 posts

164 months

Tuesday 13th March 2012
quotequote all
As above really, ive got a fault that keeps causing my cel to come on.

I would like to read my codes. So many different ones on ebay, anyone got a recommendation?

ScoobieWRX

4,863 posts

233 months

Wednesday 14th March 2012
quotequote all
Whatever your pocket can stretch to. In all fairness they all do much the same job, and if they work properly they should all display whatever error codes are making your CEL come on.

I'd have said you should be fairly safe paying somewhere between £20-£30. Have a look on fleabay, there are loads on there.

Watchman

6,391 posts

252 months

Wednesday 14th March 2012
quotequote all
Read this:

http://www.uklegacy.com/forums/index.php?showtopic...

I bought one of these cables off Ebay for 7 quid and downloaded the free software. It works far better than a generic OBDII reader.

pidsy

Original Poster:

8,200 posts

164 months

Thursday 15th March 2012
quotequote all
cheers guys.

i have looked at readers on ebay - they vary so much in price!

thanks for the lead info, i'm not sure i want to get into software downloads and the carputer side of things.

i'll chance my arm i think with one of the £30ish one from ebay `just to see if it correctly identifys the code that i think it is.

cheers guys!

(oh, where is the obd2 post on my bug?)

ScoobieWRX

4,863 posts

233 months

Thursday 15th March 2012
quotequote all
Follow the steering wheel column plastic cowling all the way down and feel underneath the plastic cowling. You'll feel the male connector just there. If in doubt take a look.

ScoobieWRX

4,863 posts

233 months

Thursday 15th March 2012
quotequote all
The vagcom cable is a very good solution and allows you with the aid of FreeSSM software on a laptop to monitor any SSM parameter (Subaru own protocol) in real-time. It's the best type of diagnostic solution for home/DIY user but not everyone's cup of tea.

OBDII/EOBD handheld/laptop devices won't let you see SSM protocols, only OBD generic codes.

Hopefully your issue has generated a generic code you can read.

pidsy

Original Poster:

8,200 posts

164 months

Thursday 15th March 2012
quotequote all
ah, ok. thats the bit i thought was odd of the cheap handheld solutions - i didnt think they would be subaru specific - could be better to go with the lead then and plug in my laptop.

cheers.

ScoobieWRX

4,863 posts

233 months

Thursday 15th March 2012
quotequote all
The VagCom cables are very cheap, less than £9 inc del on fleabay so seems like a very cost effective solution.

It should come with drivers on a CD just in case your laptop doesn't load it's own windows drivers automatically when you first plug the cable into a usb port.

Download the SSMFree software, install it, if it doesn't connect first time make sure it's using the right com port and you're good to go after that.

Compared to an OBD only solution the SSM (Subaru Select Monitor) protocol is much more detailed and comprehensive and is essentially what Subaru workshops use to run diagnostics. you should be well chuffed with it when you get going.

My remapping tools use the same SSM protocol for diagnostics so you see what i see wink

Watchman

6,391 posts

252 months

Thursday 15th March 2012
quotequote all
My cable installed without drivers, even on my Vista PC. It takes a while to identify/locate the right drivers but bear with it - it does work.

The FreeSSM software is very comprehensive. For 7 quid I now have such visibility of what my car does, it's incredible.

pidsy

Original Poster:

8,200 posts

164 months

Tuesday 27th March 2012
quotequote all
Ok, got my cable today (courtesy of ebay), next step is getting software.

Anyone got a link to a download site?

Any specigic files i need?

Cheers.

ScoobieWRX

4,863 posts

233 months

Tuesday 27th March 2012
quotequote all
FreeSSM - http://prdownload.berlios.de/freessm/FreeSSM-1.2.5...

Wait for the link to open, wait a tad longer and a dialogue box appears, then save the file to your machine.

Install the cable. Your machine may not recognise the cable in which case use the drivers on the CD you received with your cable however, most machines will recognise the cable and install their own drivers.

Install FreeSSM.

pidsy

Original Poster:

8,200 posts

164 months

Tuesday 27th March 2012
quotequote all
then plug it in to the car and it does stuff??

sorry i'm massively vague - never done anything like this before. boxedin

ScoobieWRX

4,863 posts

233 months

Tuesday 27th March 2012
quotequote all
Down below the steering wheel plastic cowling there is an OBDII socket, you plug in there.

The connector is a specific shape (Trapezium) so you can't get it wrong way around. Just make sure you plug it in squarely and straight so you don't bend any connector pins. when you've done it a few times you'll get the hang of it.

When you're plugged in and ready to go start the FreeSSM software. Your software will search the COM ports on your machine to see where the cable/adapter is registered to connect to your ECU.

If you get no joy and nothing happens then you will have to go into FreeSSM and manually select which com port to use. If you don't know which com port your cable is registered to on your machine go to Device manager and you'll see the list of COM ports in there.

In order to see the FreeSSM dashboard come alive with info you have to check which parameters you want to log/view. From there on have a play with and see what the info tells you.

When you're well practiced and you start loging WOT (Wide Open Throttle) runs you should be able to guesstimate via some calculations what kind of WHP (wheel Horsepower) and torque your car is making. The logged info usually ends up in the format CSV or Excel worksheet allowing you to import it to another program that can plot dyno figures, in conjunction with other vehicle parameters of course.

Have fun with it biggrin

pidsy

Original Poster:

8,200 posts

164 months

Tuesday 27th March 2012
quotequote all
nice one! cheers scoobie!

pidsy

Original Poster:

8,200 posts

164 months

Monday 9th April 2012
quotequote all
Finally got into the car today - it keeps telling me theres no serial port available.

What does that mean?

The device manager doesnt seem to help

pidsy

Original Poster:

8,200 posts

164 months

Monday 9th April 2012
quotequote all
Ok, device manager says the drivers are not installed so put drivers disk in and auto run wants me to open the disc as files.

What files (there are loads) do i needto install?

paulmoonraker

2,850 posts

170 months

Monday 9th April 2012
quotequote all
FWIW I had a right faf getting one of these to work properly with Windows XP. I got there in the end by fiddling with device manager, but can't remember what I did. Mine was a cheaply blue cable from eBay that came with a small CD.

pidsy

Original Poster:

8,200 posts

164 months

Monday 9th April 2012
quotequote all
I cant work it out.

Watchman

6,391 posts

252 months

Monday 9th April 2012
quotequote all
Which version of Windows?

What happens when you plug the cable into the PC? Is it recognised as a USB device or not? Does it say it's ready to use or has failed?

What happens when you fire up the SSM program? Click on Preferences and see what COM ports are listed. It should only list those that your PC has assigned. Try them all, and each time you select one click on the TEST DIAGNOSTIC INTERFACE each time. One of them will be right or your PC hasn't assigned a COM port to the cable.

pidsy

Original Poster:

8,200 posts

164 months

Monday 9th April 2012
quotequote all
My laptop has not assigned a com port. If i click on preferences, i cant choose a com port cos that click box is grey and has nothing in it.

Windows 7 starter.