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So you did not clean the throttle body...you threatened it with carb cleaner.
I think if you do a search on this site for Flame Trap you will get 11'nty billion results and it is in the FAQ's. The following is a great thread about this very process:
http://www.brickboard.com/RWD/volvo/1176527/220/240/260/280/effect_clogged_flame_trap.html
I personally do not think the codes indicate either of these issues but they MUST be done as normal maint. I would do a search for the codes, but it appears that you are likely looking at the fuel pressure regulator, a vac leak, a fresh are leak after the AMM, or an a bad O2 sensor...or any or all of these. The codes you are getting basically means you are getting WAY too much fuel or your O2 Sensor is telling the ECU that you are getting way too much fuel.
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