94 sl2 automatic
Problem: Engine revs high like normal but car doesn't go anywhere. Only goes when it is in overdrive in low rpms. Then it creeps along. Feels like the cat converter is clogged.
Ok so I took someone's previous advice in here and tried to replace my catalytic converter. I took it off and I see it is already hollowed out. I did not know this before I bought the car. There is no E-Check here so I just got a test pipe and welded it on here. This seem to fix my loud rattling sounds I had before. So this was fine for 2 days. Now it still has the same issues.
Example getting onto the highway: I push the gas half way to the floor and the engine responds by shifting down like normal. The car goes slower then normal to get up to speed. By around 40-50MPH it stops going and the engine still rev's high (by now around 5K). It will keep this speed until I let go of the gas and let it go into overdrive. Then it goes... Likewise if I am up to 65mph and I want to pass someone I hit the pedal half way to the floor, goes up to 5K or so and it will not move. I have to do it in overdrive. Also sometimes after driving on the highway the car will kind of buck around. It bucks kind of like when my EGR valve is clogged and I am going 25mph. (note my egr line is clogged and it does need replaced. i cleaned it out but didn't fix it. if i disconnect it the problem goes away)
This problem also sometimes happens driving in the city in the 35-45MPH range and try to do a hard acceleration.
Does this sound like the back end muffler is clogged? Or maybe a clogged fuel filter/pump? I have had nothing but problems since I bought this car. Every few months something else goes wrong
Still having loss of power issues 
Linear Mode
