What i have: 1988 S10 Blazer 4x4(originally a 2.8 v6) now a 3.4 from 95 camaro, still retain the factory TBI unit and computer. Small cam upgrade.

Problem: So as far as I know everything is hooked up. I have fuel, spark (although not a strong as I would like), and it started once as long as I gave it gas, died when I let go of gas. Cant get it started back. I have checked the timing several times, checked firing order, i believe all sensors are plugged in, why wont it start, really scratching my head here. Is there something im missing, i drove it in the garage and pulled out the engine, is there some kind of hard to see sensor that may keep the car from starting, help me out any ideas will be checked at this point.

 

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