ok, new plugs, and a new throttle position sensor (bought one 6 months ago, just warrantied it for free, figured it wouldn't hurt), but no changes. No smoke, but it still just sputters and an occassional backfire. Exhaust seems ok to me. It kinda seems like only a couple of the plugs are sparking, I could be wrong, but that is how it's acting. Checked fuel pressure, that seems good too.
What can I do next?
Hi, thanks for all the answers and suggestions, made another payment today to make sure I'm taking care of you.
New status, after running the car for a bit, still very rough, and we spray carb cleaner around the lines to check for vacuum leaks, nothing. But we did notice a very STRONG smell of gas and the exhaust is again blowing black, fuel rich exhaust. Did the spark test, all are sparking, but the new plugs, (only 4 days old) are soot covered like the old ones. I def have some kind of fuel issue. We're considering MAP Sensor or even Crank/Cam Sensor.