kozure okami

It's been a few weeks now since I swapped ECU's and cleared the resulting loss of power DTC. I've probably driven a few hundred miles in the meantime, mostly city but a few highway trips too. Every other readiness code reset within a couple of days, but not the catalytic converter.

What am I doing wrong? I have a 551 M ECU btw.

Thanks in advance for any help.

Tostao

Should go to 'OK' after a 30 min. highway trip, no DTCs?

kozure okami

I've done a few 30 min hwy trips; no DTCs

maxiwoofus

I used this for my 2005 Audi TT 3.2 DSG. I installed Magnaflow OEM replacement cats and could not get it to reset the ECM. I installed the restrictors and used the "small" restrictor as first recommended by the manufacturer (if they provided instructions it would be helpful) and after driving the car for 25 miles...all values were reset. The "C" clips are tight and I highly recommend having a tool (which I had) to install them. I tried without them and could not get to reset after 200 miles. The Audi dealer could not get to reset either. After we called private shops I was told of these restrictors and they do just what they say! Very pleased