Stuck in Limp.. lots of errors, cannot regen. ( DPF recently cleaned )

[rowifi]

Leon FR 2008 170ish BHP Diesel. 145,000 miles.

History. Exhaust light then Engine light then limp mode.
Had DPF professionally cleaned ( removed, ultrasonically cleaned and refitted ).
The pre and post dpf pressures measured within spec ( apparantly ).
VAG electrical specialist attended to force a regen .. did that - lights cleared - full power but within a day same problem.
They say 'Bosche systems are notoriously hard to reset' ? WTF?

Main dealer.. haha .. charged me to tell me if needed new dpf. Couldn't or wouldn't test any sensors separately... walked away disgusted.
Colleague has a vagcom .. he just did a full scan.
At ignition on there's a fault snapshot taken .. even before starting, and after clearing as many faults as we could.

Is it the Oxygen / lambda sensor?? Local garage said they tested it.. but maybe they didn't test it properly.?
So.. attached is the list of the scan. ( I am not a car expert at all ). We're still limping along,

Any suggestions.. car will have to be scrapped otherwise.
Thanks in advance.

 

[R3k1355]

Certainly looks to be the lambda sensor

03G906262B should be the part number for the sensor

 

[mty12345]

I can't see any reason to suspect the lambda sensor. (The high percentage shown is almost certainly because the engine isn't running)

I think it's far more likely that the exhaust pressure sensor (G450 is VAG designation) is faulty and giving you a false reading. The other option to check before replacement is that the pipes leading to the sensor aren't blocked or obstucted.
If the filter has been cleaned then i don't see any other reasons for this particular fault code.

Here is the offical ross-tech page for this issue, They are the makers of VCDS/VAGCOM and is by far the best place to look up any codes you have.
Special notes at the bottom of the page may help too. http://wiki.ross-tech.com/wiki/index.php/18434/P2002/008194

Here is a youtube video that may also help you. Most VAG group cars seem to use the same sensor across the range.

Make sure if you do replace it that you use a genuine BOSCH one from somewhere like Eurocarparts or GSF. If you wait until they have a 'sale' on. (which is about once a week), you can probably get it half price.
https://www.gsfcarparts.com/bos0281...QVFrGZwT4Hz4v6eSDhpCk8mUlbFdOV5BoCa4YQAvD_BwE (This may not be the exact one you need, check with your reg)

One final note is that it may not regen on it's own, even with the new sensor. Every chance that you'll have to do a forced regen again, although you may get lucky. I hope that's some help