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Old 14-02-2008   #1
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jtd's and obd diagnostics

a few people are having problems getting info from stilo jtd's regardless of age and i was just wondering if other jtd owners have/had the same issue. or does anyone know why the jtd engine wont work with this type of equipment?

so any punto, bravo, multipla etc. owners had any success or failure trying the above? if yes or no please list the set up you have tried. there has to be a specific reason and then we can start looking at solving it.
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Old 15-02-2008   #2
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Re: jtd's and obd diagnostics

diesels didnt have to be eobd compliant until 2004, so up until 2004 the JTD used fiat's own protocol, same as petrol models prior to 2001. you can still use the standard interface for diagnostics but you need software capable of using the fiat protocol, anything else wont be able to communicate with the ecu.
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Old 15-02-2008   #3
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Re: jtd's and obd diagnostics

my stilo is 2005 '05 so should be EOBD shouldnt it? but i get exactly the same readings as argo who's stilo is 2002.
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Old 15-02-2008   #4
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Re: jtd's and obd diagnostics

check your build date, if it is before april 2004 then you cant guarantee eobd compatibility, after that it must be compatible by law so failure to communicate would be due to a different problem (e.g. your interface)
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Old 15-02-2008   #5
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Re: jtd's and obd diagnostics

so how/where would i find out my build date?
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Old 15-02-2008   #6
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Re: jtd's and obd diagnostics

pm me your reg number and i will get it for you
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Old 15-02-2008   #7
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Re: jtd's and obd diagnostics

done
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Old 17-02-2008   #8
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Re: jtd's and obd diagnostics

I'm not convinced by Alfa JTD is OBD compliant - I simulated an error, the engine warning light was on but the reader didn't pickup an error code. I just plugged my wifes 2004 C4 diesel in because of a EGR error and her's is.
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Old 18-02-2008   #9
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Re: jtd's and obd diagnostics

i just posted on an alfa forum as its a bit grey on wether they have managed it on their jtd's.
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Old 18-02-2008   #10
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Re: jtd's and obd diagnostics

Quote Originally Posted by thepottleflump View Post
I'm not convinced by Alfa JTD is OBD compliant
maybe it isnt, what is your build date?
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Old 18-02-2008   #11
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Re: jtd's and obd diagnostics

No idea, it's a late 2004 facelift model but that doesn't mean it wasn't build before the car became ODB compliant. Strangly it connects but when the engine light (me pulling a senor lead) was on it didn't read an error.
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Old 19-02-2008   #12
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Re: jtd's and obd diagnostics

it can take a few "drive cycles" before a fault code is recorded in ecu, unplug the sensor then drive for a few journeys and it should record a fault code.
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Old 21-02-2008   #13
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Re: jtd's and obd diagnostics

any more info NumanR??
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Old 27-02-2008   #14
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Re: jtd's and obd diagnostics

Sorry mate, completely forgot, I will do it tomorrow. By the way I have been shown a product which I think you guys could be very interested in, I will be getting one on test to try so will check what it can do and how useful it could be.

http://www.crecorder.com/website/use...uctInfo&page=1

How much do you think it costs?
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Old 28-02-2008   #15
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Re: jtd's and obd diagnostics

they're £80 on ebay so i guess you get them for approx £25?
http://cgi.ebay.co.uk/LAUNCH-CAR-RUN...QQcmdZViewItem
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Last edited by jug; 28-02-2008 at 17:40.
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