Quote:
Originally Posted by nissanguy13
Did you run that motor with the stock elbow and o2 first? The sputtering and black smoke doesn't sound like an o2 problem.
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This made me start thinking; I had a friend helping me work on the car yesterday and he switched out my air filter while I was working on the exhaust stuff. I just went out to check, and......the metal retaining piece on the MAF plug is gone and the plug is hanging loose

Guess that explains why it ran fine for a while, and then fell on its face after I punched it (must have shaken the plug loose).