Stalls out when accelerating. How to fix? on 2002 Nissan Xterra

I have already replaced the fuel pump, fuel filter, and mass airflow sensor; but the problem is still there and I'm out of ideas on how to fix it.

by in Clarksburg, OH on February 13, 2013
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2 answers
ANSWER by , February 13, 2013
do u have any eng codes,if so post so we can adv
ANSWER by , February 07, 2015
Possibly blocked catalytic converter