147 - diagnostic eobd/elm reading - what am i doing wrong? - Alfa Romeo Forum
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147 TS 1.6 Lusso

147 - diagnostic eobd/elm reading - what am i doing wrong?

i bought an ELM327 usb interface OBDII/EOBD reader from ebay (advertised as working on alfa 147) and downloaded various diagnostic software as recommended in other threads i found when searching, but i just cannot get it to detect my car?

the car is a Y-reg (2001) 147 1.6 Lusso and I have tried all sorts of combinations of baud rate / iso standard settings but i keep getting interface not found errors. i have also tried with just the ignition on and with the engine running, but it doesn't seem to make any difference...

can anybody please suggest what i'm doing wrong or if i'm missing something?

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Re: 147 - diagnostic eobd/elm reading - what am i doing wrong?

i find my interfance can be a bit hit or miss... best way to connect up, connect interface to pc and let the pc do its thing, making sure it is ready to use, then plug it into the car port, then switch ignition on (not starting engine) then load the software on the pc, it should conenct ok.

as for settings of the device, not sure on ISO settings but it must be a 9600bps baudrate
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Re: 147 - diagnostic eobd/elm reading - what am i doing wrong?

The one I use is different to yours but just goes thus: Ignition Off.

Connect OBD cable

Ignition On Start Software, Connect To Vehicle Button, using default parameters, units of measure etc; if I remember correctly?
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147 , diagnostic , eobd or elm , reading , wrong

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