92 Festiva runs like s#!t????

[bryanl1]

I just bought a 92 Festiva with a cracked head. It ran good, but wanted to stall at idle.

I replaced the entire engine with a junkyard engine (90000 mi). I used all of the stuff from my original engine, the exhaust manifold , air box, distributor, intake & fuel injection.

I put in a new timing belt, tensioner & spring, new water pump, new o2 sensor, new plugs, wires, cap & rotor, new clutch, pressure plate, throwout bearing & pilot bearing, new thermostat, and radiator hoses.

The car starts right up, but it idles rough and when I push the gas pedal down more than a little bit when I try to drive it, the car dies down to idle speed. If I punch the gas when the car is in neutral, it stumbles then revs up. The car is also blowing a little black smoke. It appears to be running mega rich. I removed the air box and the car started, but when I touched the gas, it stalled immediately. My car is a 5 speed with no a/c. The engine I put in was from an automatic with air.

I pulled the plugs to make sure that I gapped them correctly and they are dead on. The firing order is correct as well, and the timing is dead on.

Does anyone have a clue as to what is causing the car to run like this?

Thanks,
Bryan

[Epixstar]

i whould check for a bad vacum leak if i were you mine was running that bad when i got it and thats all it was for mine

[bryanl1]

One of the first things I did was check the intake for a vacuum leak and there was no leak.

Bryan

[nonamekid]

Make sure you put the timing belt on correctly. If it is off one tooth it will run bad.

[Champ 98]

You of course swapped the TPS from the manual motor to the Auto right???

Did you do a compression test on the wrecker motor, one thing I suspect you might have is a burnt exhaust valve ...

failing that, check that your VAF is moving freely.