MAF sensor

[navylife59]

Here are a few articles that you should read that directly relate to your predicament.

1.Understanding Three-Way Catalytic Converters and Heated Oxygen Sensors
2.Understanding What Causes DTCs and Illuminates your MIL
3.ECM Failsafe Mode - What Causes It and What to Do
4.Rough Idle After Battery Reset

This is what you need to create your own anti-fouler and to most likely resolve your DTC.
How to Easily Create Your Own Effective O2 Simulator The Inexpensive Way

For Reference:
MIL DTCs

[ACE-tC]

alright my CEL is off!!! its been 3 days so far and nothing. i can already tell the difference in both gas and performance. who knew a small little piece like that can make a big difference!

[navylife59]

Yeah!