Engine has a lose of power?

Car starts sometimes it will idle rough with no throttle response, other times revs no problem. Really running out of ideas and it's not showing any fault codes. Have looked online seems to be a common problem with this car model, but never seem to find a fix. Any help would be appreciated. Thanks

I have recently had a problem with a loss of power. I washed the engine bay and did not cover any of the electrical components. When attempting to start the vehicle it would crank over but not start. I figured out the distributor got wet, pulled it apart & dried it out, this solved the problem.
However I now have a problem that whenever I drive the car and change gears the engine looses power at the lower revs, as soon as the revs go up the power increases and the engine runs well, until I have to change gear. This happens through all gear changes.
Any suggestions / comments are welcomed.

Regards
Peter

Getting stuck in traffic is when I develop this problem. After sitting at idle for a minute or two when you go to accelerate the car will just surge you can just barely give it gas to start moving but if you try and give it to much it will just bog down after it cools all the way down it will be fine then. The car had been in a flood was thinking it might have something to do with the fuel tank that has been the only thing I have not changed yet.

The water got about halfway up the door. All the fluids was changed and new plugs and wires was installed.I did not do this personally this was all done before I purchased the car. I know all the insides was took out and replaced. I was told everything important was changed out. The car ran great for at least three months of driving everyday. Then during the hotter months this year I started having this problem when I would get stuck in traffic and would sit at idle for two or three minutes and start to accelerate it would not go. You could just ease on the gas pedal a little bit and let it gain speed on its own if you gave it to much gas it will just bog down and sometimes cut off. I have tried letting it set for a few minutes with the engine off to see if that would help but it did not. The only way it clears up is to let it cool completely off and then it is good to go. It don’t run hot or any thing like that just will not accelerate when it sets at idle for a few minutes. Other than that it is a great car.

The check engine light works, but is not on when the car is running checked and no codes stored.

3SFE engine in my car, It will start and throttle perfectly, somehow the the muffler starts giving a subaruish sound when I take it for a spin and starts to accelerate the RPM works normal, but the car hesitates with the pedal to the floor and it goes no where. I get a good amount of smoke from the tail pipe (white sometime and blue another). I have no vacuum leaks, where do I start?

Turned out that my number 4 cylinder wasn't firing. Got it fixed. The number 3 cylinder injector wire was plugged off

1995 Toyota Curren (Celica) 170,000km manual with 2L 3sfe

I have noticed lately a lack of power that comes and goes at no particular engine speed or temperature. This problem never comes and goes during a trip, it is either there or it isn't and has been getting worse. When taking off or changing gear the engine will bunny hop slightly like it is trying to stall. It also makes quite a bit of noise when engine braking. I have replaced the spark plugs and put through a bottle of injector cleaner and this hasn't helped. I noticed the points on the distributor cap were quite dirty and worn. I cleaned them up but they are still a bit worn. Could this be the problem? I have been told the MAF sensor could be causing this.
The engine light is not on. What do you think could be causing this?