I had a problem with my 1991 honda civic a few weeks back, and after 2 weeks at the mechanics, still can't get it to run correctly. Let me give the details

Leaving work, car started drove it about 3 miles, took the on ramp on the highway, and as soon as i got off the ramp, Check Engine light came on, car had NO power, and it stayed running, as i coasted to the side of the road.
The car would idle, but wouldn't rev over 1,000 rpm's.
A minute of so after i stopped, and the car stalled out, smoke came out from underneath the car. After a few minutes, the smoke calmed down, i opened the hood, the engine seemed fine, but as i looked down, i could see the catalytic converter(i think that is what it was) glowing a BRIGHT orange, like it was ready to catch on fire.
It cooled down, the car would start right up, never overheated, but would not go faster than a few MPH's.
I took it to the garage, and after 2 weeks, the mechanic said he ran the computer codes(which i don't believe), but couldn't do anything with the cat or exhaust system , because he didn't have torches or the right tools.
I just got it out of there, i was a little pissed that after 13 days, the car is in no different condition than before.
What got me thinking about when he supposedly read the computer codes, is if he actually did anything.
I have read that for a 1991 civic, there is only 1 way to read them , and that is to short out the 2 plugs inside a green harness, and count the blinks from the check engine light.
So i guess this is where i should begin on tuesday, if this is the proper procedure to start to figure out what exactly is wrong with this car.
Btw, the car is an automatic, Civic Lx, with 65,000 original miles.
I am somewhat familiar with Nissan 300zx's, and this is the 1st Honda i have ever owned.
So if anyone has ever had a similar situation, with the engine light coming on, no power, and a cat converter that turns red/orange, could you tell me what your problem ended up being.
I would also like someone to tell me the proper procedure , if possible, to read these engine codes, and if shorting out the green harness is the correct way to do this. Thank you!!.

 

On the 1991, codes are read by watching a blinking LED on the ECU unit itself. The ECU is under the carpet where the passenger's feet would be. Pull down the carpet to find the LED behind a window. Turn the key on (do not start engine), count the blinks of the LED. It will repeat the same sequence over and over again.

Overheating of the cat is not because it is bad, but because something is wrong with the engine systems allowing raw gasoline to reach the cat instead of being properly burned in the engine.

The 91's ECU does not detect misfiring or problems with the cat. But if the CEL comes on there will be a code. Also in a case like this with a sudden loss of performance, the timing belt timing should be checked. They can skip teeth.

 

I am caught in a rain delay, so it don't look like anything will be accomplished. Boy, do i wish i had a garage to work in.
Anyhow, after i started the car, i moved it to an area where i was going to put the ramps under it, and i notice drops of gas coming out of the tail pipe.
Can anyone suggest what may be causing this?.

 

Sensor problem, excessive fuel pressure, blown fuel pressure regulator (leaks to the small hose to the intake), fuel injector stuck open.

You can get the code from inside the car.

 

I did them a few times, 1st few times, all i got was a 4. I took the car for a ride, came back, pulled the hazard fuse , ran them again, and now i get a 4 AND a 16.
Now i guess it's time to investigate.

Anyone have suggestions, please reply!.