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Update:
Today we restored original ECU maps and get rid of few additional ponies, but issue remains - actually, now I get P0235 and engine goes into limp mode even earlier, right after 2 bars of additional boost (previously it was at around 2,4 bar).

Symptoms are worse every day. Now it is jerky and I can hear turbo hissing in short intervals, can feel all car shaking when I give it slightly too much gas on even slight uphil.

So I narrowed down to:
- maybe clogged or seized catalytic converter? Is it easy to reach on V9X engine?
- worse would be stuck turbo vanes, maybe actuator rod or vacuum actuator, but it is pain to get turbo out on these engines.
- even worse would be one or more innectors.

I am writing all thoughts here to maybe get some ideas, or to help others. It is a bit boresome talking to myself, but it helps me keeping focus.

<blockquote data-quote="Labsy" data-source="post: 407405" data-attributes="member: 50514">Update:Today we restored original ECU maps and get rid of few additional ponies, but issue remains - actually, now I get P0235 and engine goes into limp mode even earlier, right after 2 bars of additional boost (previously it was at around 2,4 bar).Symptoms are worse every day. Now it is jerky and I can hear turbo hissing in short intervals, can feel all car shaking when I give it slightly too much gas on even slight uphil. So I narrowed down to:- maybe clogged or seized catalytic converter?&nbsp; Is it easy to reach on V9X engine?- worse would be stuck turbo vanes, maybe actuator rod or vacuum actuator, but it is pain to get turbo out on these engines.- even worse would be one or more innectors.I am writing all thoughts here to maybe get some ideas, or to help others. It is a bit boresome talking to myself, but it helps me keeping focus. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /></blockquote>

[QUOTE="Labsy, post: 407405, member: 50514"] Update: Today we restored original ECU maps and get rid of few additional ponies, but issue remains - actually, now I get P0235 and engine goes into limp mode even earlier, right after 2 bars of additional boost (previously it was at around 2,4 bar). Symptoms are worse every day. Now it is jerky and I can hear turbo hissing in short intervals, can feel all car shaking when I give it slightly too much gas on even slight uphil. So I narrowed down to: - maybe clogged or seized catalytic converter? Is it easy to reach on V9X engine? - worse would be stuck turbo vanes, maybe actuator rod or vacuum actuator, but it is pain to get turbo out on these engines. - even worse would be one or more innectors. I am writing all thoughts here to maybe get some ideas, or to help others. It is a bit boresome talking to myself, but it helps me keeping focus. :) [/QUOTE]

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