I dread working on these things. Everytime I come across a s10, it drives me nuts. I have read around this board and a few others but Ive already tried most of the ideas I read about. Truck is a 95 5spd with a 2.2. It has new plugs, wires, ICM and coil packs. There is no check engine light. The truck has no power, sputters from idle to redline, and you can clearly see unburned fuel coming out the exhaust. It also smells like raw fuel. What else could cause it to run like this?

 

O2 sensor or bad computer. Best guess.

 

not sure if U have solved the problem but, have U ever checked the timing on it? i had a problem simmilar 2 yours years ago on a little 4 bangger i owned- the thing wouldn't even make it out of the underground parking at my friends place without taking a run at the door!!! checked (and set) the timing, problem solved (although it still didn't have enough power!!hahahahaha.