Technical ECU error P112D

[gkoryt]

Hi
I keep getting Engine Check lamp on with ECU reporting fault code P112D.
The model is Punto Sporting 1.2 16v, 2002.

After clearing the fault comes back - seems ECU uses a 2-trip logic for it.

Can't find the fault description anywhere...
Could anybody with access to any official Fiat documentation help, please?

 

[gkoryt]

Hi, anybody can help? ECU fault code P112D, Punto Sporting.

 

[T14086]

that is not a fiat specific code

 

[gkoryt]

What makes you think it is not fiat specyfic code? Do you have access to the manufacturer documentation or something else makes you think so?

 

[DaveMcT]

He's a top Fiat tech so probably yes.

It might be an error in the code reader software
Google found this
http://boardreader.com/thread/Need_some_help_limp_modes_misfires_hkeoX661m.html

 

[gkoryt]

OK, so my code reader (that is ELM327 v1.3a) gives a BMW specyfic error code for Punto Sporting.
This BMW code means oxygen sensor issue in a sensor bank 2 that the Punto does not have at all (BMWs have two exausts).

It may be that:

1) code reader or software is crap
2) somebody replaced fiat ecu with BMW ecu in my car (I bought it a couple months ago and do not know its history)
3) somebody replaced ecu software with a BMW specyfic software
4) there is a wiring problem between ecu and the code reader that makes the reader read a non-sense code.

Are options 2 & 3 possible at all?
As to option 4, the reader software shows engine running parameters making sense... is it possible that it gives a non-sense error code but still receives correct data for sensor readings?

 

[rallycinq]

Option One is the most likely, in fact the only option.

Cheers

D