There are three things that make an internal combustion engine work, air, fuel and spark. Keep that statement in mind.
The Fiero has been steadily losing power. Wednesday I was on the interstate and it was all it could do to pull itself up a rise. At cruising speed it was fine. Keep in mind that it threw no codes and all the gauges were reading normally.
Spark - I double checked the timing, all was well.
Fuel - I taped a fuel pressure gauge to the deck lid and drove it up a steep hill. No power but plenty of fuel pressure.
Air - I pulled the lid off the air cleaner and removed the filter to check it. Holy crap! Under the air filter, where the inlet tube feeds the filter assembly was a huge wad of tape and masking paper from the paint session. It was almost entirely blocking the feed of air to the filter.
I'm not sure how it got sucked in there but it runs a lot better now that it can breath.
But I still want more power...